Glass Insulator Collection

by Rob L. Dey
HEMINGRAY-42
A collection of 66 glass threaded pin type insulators from North America. Many of these insulators were used on telegraph poles for wire line Morse code communication.
NOTE: All photos on this web site are copyright protected. Please contact the owner to reuse the images elsewhere.

Also, visit the Porcelain Insulator Collection and the In-Service Insulator Photos.

Thumbnail Manufacturer Model Image (side) Image (top) Embossing Color Year Condition* Use Style# CD# Type Base Dimensions Weight Cleaned
gi6 Whitall Tatum 1 DSCF3333.jpg DSCF3327.jpg WHITALL TATUM CO. No 1 MADE IN U.S.A. on skirt ice aqua 1922-1938 (company 1901-1938) Millville, NJ no damage telegraph/phone 1 153 [010] Double Petticoat smooth base (SB, no drip points) 3.7"W x 4.1"H meas'd 24oz. No
gi37 Whitall Tatum 1 DSCF3730.jpg DSCF3729.jpg, DSCF3728.jpg WHITALL TATUM CO. No 1 (small 5 below A in TATUM) MADE IN U.S.A. (WT in triangle logo) on skirt straw 1922-1938 (insulators 1922-1938, company 1806-1938) Millville, NJ no damage telegraph/phone 1 153 similar to 154 [050] Double Petticoat smooth base (SB, no drip points) 3.70"W x 4.07"H meas'd 24oz. No
gi38 Whitall Tatum 1 DSCF3733.jpg DSCF3731.jpg, DSCF3732.jpg WHITALL TATUM CO. No 1 (small 13 below A in TATUM) MADE IN U.S.A. (WT in triangle logo) on skirt ice aqua 1922-1938 (insulators 1922-1938, company 1806-1938) Millville, NJ no damage telegraph/phone 1 153 similar to 154 [050] Double Petticoat smooth base (SB, no drip points) 3.71"W x 4.08"H meas'd 24oz. No
gi57 Whitall Tatum 1 DSCF4147.jpg, DSCF4146.jpg, DSCF4148.jpg DSCF4144.jpg, DSCF4145.jpg WHITALL TATUM CO. No 1 (small 34 below A in TATUM) MADE IN U.S.A. (WT in triangle logo) on skirt ice aqua 1922-1938 (insulators 1922-1938, company 1806-1938) Millville, NJ no damage (0 microflaws) telegraph/phone 1 153 similar to 154 [050] Double Petticoat smooth base (SB, no drip points) 3.69"W x 4.01"H meas'd 24oz. (24.50oz. meas'd) No
gi39 Whitall Tatum 1 DSCF3736.jpg, DSCF3737.jpg DSCF3734.jpg, DSCF3735.jpg WHITALL TATUM CO. (WT in triangle logo) No 1.MADE IN U.S.A. (with small 20 above E in MADE) on skirt ice aqua/light aqua (mint) 1922-1938 (insulators 1922-1938, company 1806-1938) Millville, NJ no damage telegraph/phone 1 153 similar to 154 [070] but light aqua Double Petticoat smooth base (SB, no drip points) 3.70"W x 4.07"H meas'd 24oz. No
gi7 Whitall Tatum 1 DSCF3443.jpg DSCF3444.jpg WHITALL TATUM CO. No 1 24 MADE IN U.S.A. on skirt carnival clear 1924 (insulators 1922-1938, company 1901-1938) Millville, NJ minor damage (1 small ding at bottom) telegraph/phone 1 154 similar to [040] but not blue aqua Double Petticoat smooth base (SB, no drip points) 3.71"W x 4.1"H meas'd 24oz. No
gi16 Whitall Tatum 1 DSCF3434.jpg DSCF3435.jpg WHITALL TATUM No 1 MADE IN U.S.A. 3-41 (A in circle logo) on skirt clear 1941 with mold #3 (insulators 1922-1938, company 1806-1938) Millville, NJ no damage telegraph/phone 1 155 [005] Double Petticoat smooth base (SB, no drip points) 3.58"W x 4.0"H meas'd 24oz. No
gi17 Whitall Tatum 1 DSCF3436.jpg DSCF3437.jpg WHITALL TATUM No 1 MADE IN U.S.A. 5-43 (A in circle logo with small 43 beneath) on skirt clear 1943 with mold #5 (insulators 1922-1938, company 1806-1938) Millville, NJ no damage telegraph/phone 1 155 [010] Double Petticoat smooth base (SB, no drip points) 3.58"W x 4.1"H meas'd 24oz. No
gi28 Armstrong 2 DSCF3545.jpg DSCF3543.jpg, DSCF3544.jpg Armstrong's No 2 MADE IN U.S.A. (A in circle logo) 55 49. on skirt clear 1950 with mold #55 from 1949 (insulators and company 1938-1969, formerly Whitall Tatum) Millville, NJ minor damage (3 microflaws and some wear) telegraph/phone/toll 2 122 [060] Toll/Single Petticoat smooth base (SB, no drip points) 2.8"W x 3.9"H meas'd 16oz. (16.40oz. meas'd) No
gi45 Whitall Tatum 2 DSCF4080.jpg, DSCF4081.jpg DSCF4079.jpg WHITALL TATUM CO. No 2 (small 20 below A in TATUM) MADE IN U.S.A. (WT in triangle logo) on skirt light aqua/ice aqua 1922-1938 (insulators 1922-1938, company 1806-1938) Millville, NJ no damage (1 microflaw) telegraph/phone/toll 2 122 [070] Toll/Single Petticoat smooth base (SB, no drip points) 2.83"W x 3.85"H meas'd 15oz. (14.90oz. meas'd) No
gi46 Armstrong 3 DSCF4086.jpg, DSCF4087.jpg DSCF4085.jpg A(in circle logo)rmstrong NO. 3 MADE IN U.S.A. 49 6 on skirt clear 1955 with mold from 1949 (or 1949 with mold #6) (insulators and company 1938-1969, formerly Whitall Tatum) Millville, NJ no damage (1 microflaw) telegraph/phone/exchange 3 115 similar to [020], but has dot after NO Exchange/Single Petticoat smooth base (SB, no drip points) 2.46"W x 3.28"H meas'd 12oz. (11.60oz. meas'd) No
gi34 Whitall Tatum (Armstrong) 3 DSCF3709.jpg DSCF3707.jpg, DSCF3706.jpg, DSCF3708.jpg WHITALL TATUM No 3 (made by Armstrong) MADE IN U.S.A. 20-48 (A in circle logo with small 45 beneath) on skirt clear 1948 with mold #20 from 1945 (insulators and company 1938-1969, Armstrong was formerly Whitall Tatum) Millville, NJ no damage telegraph/phone/exchange 3 115 [013] Exchange/Single Petticoat smooth base (SB, no drip points) 2.44"W x 3.27"H meas'd 11oz. (11.08oz. meas'd) No
gi31 Whitall Tatum 5 DSCF3531.jpg DSCF3530.jpg, DSCF3532.jpg WHITALL TATUM CO. No 5 (small 5 below A in TATUM) MADE IN U.S.A. (WT in triangle logo) on skirt aqua tint (ice aqua) 1922-1938 (insulators 1922-1938, company 1806-1938) Millville, NJ no damage (4 microflaws) telegraph/phone or power 5 165.1 [030] Double Petticoat smooth base (SB, no drip points) 3.2"W x 3.65"H meas'd 16oz. (16.40oz. meas'd) No
gi47 Armstrong 9 DSCF4109.jpg, DSCF4110.jpg DSCF4108.jpg Armstrong's No 9 MADE IN U.S.A. (A in circle logo) 5 50::. on skirt clear 1955 with mold #5 from 1950 (insulators and company 1938-1969, formerly Whitall Tatum) Millville, NJ no damage (2 microflaws) telegraph/phone/rural 9 107 similar to [020], but no dot after No Pony/Single Petticoat smooth base (SB, no drip points) 2.37"W x 3.38"H meas'd 10oz. (9.90oz. meas'd) No
gi55 Armstrong 9 DSCF4133.jpg, DSCF4135.jpg DSCF4134.jpg, DSCF4136.jpg Armstrong's No 9 MADE IN U.S.A. (A in circle logo) 12 50 on skirt clear (off clear/light straw) 1953 with mold #12 from 1950 (insulators and company 1938-1969, formerly Whitall Tatum) Millville, NJ no damage (1 microflaw) telegraph/phone/rural 9 107 similar to [020], but no dot after No Pony/Single Petticoat smooth base (SB, no drip points) 2.34"W x 3.38"H meas'd 10oz. (10.05oz. meas'd) No
gi64 Brookfield 9 DSCF4225.jpg, DSCF4228.jpg DSCF4223.jpg, DSCF4229.jpg BROOKFIELD NEW YORK on skirt with backwards 2 on top of dome light aqua/ice aqua 1868-1888 or 1903-1908 (insulators 1865-1921, company 1853-1921) no damage (3 microflaws) telegraph/rural 9 102 [090] Pony/Single Petticoat smooth base (SB, no drip points) 2.27"W x 3.51"H meas'd 10oz. (10.25oz. meas'd) No
gi61 Brookfield 9 DSCF4175.jpg, DSCF4173.jpg DSCF4171.jpg, DSCF4172.jpg BROOKFIELD NEW YORK on skirt with backwards 15 on top of dome aqua w/amber 1868-1888 or 1903-1908 (insulators 1865-1921, company 1853-1921) minor damage (some wear on wire ridges and a small bruise) telegraph/rural 9 102 [090] Pony/Single Petticoat smooth base (SB, no drip points) 2.15"W x 3.54"H meas'd 10oz. (10.35oz. meas'd) No
gi1 Brookfield 9 DSCF3335.jpg DSCF3343.jpg BROOKFIELD on skirt with X2 on top of dome dark aqua 1868-1888 or 1908-1918 (insulators 1865-1921, company 1853-1921) minor damage (some wear on dome) telegraph/rural 9 102 [020] Pony/Single Petticoat smooth base (SB, no drip points) 2.35"W x 3.6"H meas'd 11oz. (11.44oz. meas'd) No
gi48 Dominion 9 DSCF4106.jpg, DSCF4107.jpg DSCF4105.jpg DOMINION-9 48 (D in diamond logo with small 6 below logo) on skirt clear (light peach) 1948 with mold #6 (company 1913-1967) Dominion Glass Company Ltd. (formerly Diamond Flint Glass Company) in Montreal, Quebec, or Wallaceburg, Ontario, Canada no damage (1 microflaw) telegraph/phone/rural 9 108 [080] Pony/Single Petticoat sharp drip points (SDP) 2.31"W x 3.81"H meas'd 11oz. (10.65oz. meas'd) No
gi10 Hemingray 9 DSCF3427.jpg DSCF3428.jpg HEMINGRAY-9 MADE IN U.S.A. on skirt aqua 1890-1969 (company 1848-1972) no damage telegraph/phone/rural 9 106 [120] Pony/Single Petticoat round drip points (RDP) 2.41"W x 3.67"H meas'd 9oz. (8.70oz. meas'd) No
gi49 Hemingray 9 DSCF4102.jpg, DSCF4103.jpg DSCF4101.jpg HEMINGRAY-9 MADE IN U.S.A. 2-42::. on skirt clear (green tint) 1947 with mold #2 from 1942 (company 1848-1933), (1914-1959) (division of Owens-Illinois Glass Co. 1933-1972) Muncie, IN no damage (3 microflaws) telegraph/phone/rural 9 106 [140] Pony/Single Petticoat round drip points (RDP) 2.29"W x 3.70"H meas'd 9oz. (9.20oz. meas'd) No
gi56 Hemingray 9 DSCF4137.jpg, DSCF4138.jpg, DSCF4141.jpg DSCF4139.jpg, DSCF4140.jpg HEMINGRAY-9 MADE IN U.S.A. 11C-9 (below IN) on skirt clear (aqua tint) 1929 with mold #11C (company 1848-1933), (1914-1959) (division of Owens-Illinois Glass Co. 1933-1972) Muncie, IN no damage (1 microflaw) telegraph/phone/rural 9 106 [140] Pony/Single Petticoat round drip points (RDP) 2.27"W x 3.71"H meas'd 9oz. (8.50oz. meas'd) No
gi15 Whitall Tatum 9 DSCF3432.jpg DSCF3433.jpg WHITALL TATUM No 9 28 MADE IN U.S.A. 43 (WT in triangle logo with a dot near each corner, 3 total) on skirt clear 1946 with mold #28 from 1943 (insulators 1922-1938, company 1806-1938) Millville, NJ no damage telegraph/phone/rural 9 107 [030] Pony/Single Petticoat smooth base (SB, no drip points), threaded portion of wooden pin still remains inside 2.33"W x 3.4"H meas'd 10oz. (10.50oz. meas'd) No
gi60 Hemingray 10 DSCF4168.jpg, DSCF4170.jpg, DSCF4169.jpg DSCF4166.jpg, DSCF4167.jpg HEMINGRAY-10 MADE IN U.S.A. on skirt aqua 1868-1933 (company 1848-1933), (1914-1959) (division of Owens-Illinois Glass Co. 1933-1972) Muncie, IN no damage (3 microflaws) telegraph/phone/exchange 10 115 [050] Exchange/Single Petticoat round drip points (RDP) 2.52"W x 3.30"H meas'd 10oz. (9.65oz. meas'd) No
gi12 Hemingray 10 DSCF3423.jpg DSCF3424.jpg HEMINGRAY-10 MADE IN U.S.A. 64-42: on skirt clear 1944 with mold #64 from 1942 (1914-1959) (division of Owens-Illinois Glass Co. 1933-1972) Muncie, IN no damage telegraph/phone/exchange 10 115 [080] Exchange/Single Petticoat smooth base (SB, no drip points) 2.5"W x 3.3"H meas'd 10oz. (10.10oz. meas'd) No
gi11 Hemingray 10 DSCF3420.jpg DSCF3422.jpg HEMINGRAY-10 0-4.: MADE IN U.S.A. 43C on skirt clear 1937 with mold #43C from 1934 (1914-1959) (division of Owens-Illinois Glass Co. 1933-1972) Muncie, IN no damage telegraph/phone/exchange 10 115 [110] Exchange/Single Petticoat round drip points (RDP) 2.5"W x 3.3"H meas'd 10oz. (10.17oz. meas'd) No
gi29 Hemingray 12 DSCF3548.jpg, DSCF3549.jpg, DSCF3550.jpg DSCF3546.jpg, DSCF3547.jpg HEMINGRAY-12 MADE IN U.S.A. on skirt aqua 1868-1933 (company 1848-1933) minor damage (3 small chips on skirt edge, and 2 points chipped/flaked) telegraph/phone/exchange 12 113 [070] Exchange/Single Petticoat sharp drip points (SDP) 2.4"W x 3.6"H meas'd 10oz. (9.85oz. meas'd) No
gi50 Hemingray 14 DSCF4093.jpg, DSCF4095.jpg DSCF4092.jpg HEMINGRAY-14 MADE IN U.S.A. on skirt (painted embossing) aqua 1868-1933 (company 1848-1933) no damage (3 microflaws) telegraph/phone or power 14 160 [030] Double Petticoat round drip points (RDP) 2.86"W x 3.50"H meas'd 11oz. (11.20oz. meas'd) No
gi35 Hemingray 16 DSCF3705.jpg DSCF3702.jpg, DSCF3701.jpg, DSCF3703.jpg HEMINGRAY-16 MADE IN U.S.A. on skirt (similar embossing blotted out above rear embossing) aqua 1868-1933 (company 1848-1933) no damage telegraph/phone/toll 16 122 [030] Toll/Single Petticoat round drip points (RDP), threaded portion of wooden pin still remains inside 2.80"W x 3.90"H meas'd 16oz. (15.76oz. meas'd) No
gi51 Hemingray 16 DSCF4083.jpg, DSCF4084.jpg DSCF4082.jpg HEMINGRAY-16 MADE IN U.S.A. on skirt aqua 1868-1933 (company 1848-1933) no damage (10 microflaws) telegraph/phone/toll 16 122 [030] Toll/Single Petticoat round drip points (RDP) 2.80"W x 3.96"H meas'd 15oz. (14.50oz. meas'd) No
gi52 Hemingray 16 DSCF4118.jpg, DSCF4119.jpg DSCF4117.jpg HEMINGRAY-16 MADE IN U.S.A. 5-44 on skirt clear 1944 with mold #5 (company 1848-1933), (1914-1959) (division of Owens-Illinois Glass Co. 1933-1972) Muncie, IN no damage (5 microflaws) telegraph/phone/toll 16 122 [060] Toll/Single Petticoat smooth base (SB, no drip points) 2.82"W x 4.02"H meas'd 16oz. (15.90oz. meas'd) No
gi25 Hemingray 17 DSCF3508.jpg, DSCF3507.jpg DSCF3509.jpg, DSCF3510.jpg HEMINGRAY-17 MADE IN U.S.A. 64-42:: on skirt clear 1946 with mold #64 from 1942 (1914-1959) (division of Owens-Illinois Glass Co. 1933-1972) Muncie, IN minor damage (tiny bruise, 1 chip) telegraph/phone/toll 17 122 [120] Toll/Single Petticoat corrugated base (CB, no drip points) 2.79"W x 4.01"H meas'd 16oz. (15.91oz. meas'd) No
gi53 Hemingray 17 DSCF4115.jpg, DSCF4116.jpg DSCF4114.jpg HEMINGRAY-17 MADE IN U.S.A. 39-50. on skirt clear 1951 with mold #39 from 1950 (company 1848-1933), (1914-1959) (division of Owens-Illinois Glass Co. 1933-1972) Muncie, IN no damage (8 microflaws) telegraph/phone/toll 17 122 [120] Toll/Single Petticoat corrugated base (CB, no drip points) 2.83"W x 4.00"H meas'd 16oz. (15.55oz. meas'd) No
gi20 Hemingray 19 DSCF3418.jpg DSCF3419.jpg HEMINGRAY-19 MADE IN U.S.A. on skirt aqua 1868-1933 (company 1848-1933) no damage telegraph or secondary power/central station 19 162 [090] Double Petticoat round drip points (RDP) 3.25"W x 4.1"H meas'd 19oz. No
gi24 Hemingray 19 DSCF3493.jpg DSCF3492.jpg, DSCF3494.jpg HEMINGRAY-19 MADE IN U.S.A. on skirt aqua 1868-1933 (company 1848-1933) no damage telegraph or secondary power/central station 19 162 [090] Double Petticoat round drip points (RDP) 3.22"W x 4.08"H meas'd 19oz. No
gi58 Hemingray 21 DSCF4159.jpg, DSCF4160.jpg DSCF4156.jpg, DSCF4157.jpg HEMINGRAY-21 MADE IN U.S.A. on skirt aqua 1868-1933 (company 1848-1933) minor damage (small ding and bruise near wire ridges) telegraph/phone (Western Union) 21 145 [080] Beehive/Double Petticoat sharp drip points (SDP) 3.28"W x 4.43"H meas'd 20oz. (19.95oz. meas'd) No
gi63 American Telephone & Telegraph (Brookfield) 30 DSCF4205.jpg, DSCF4206.jpg DSCF4207.jpg A.T. & T. Co. on skirt with X2 on top of dome aqua 1868-1921 (insulators 1865-1921, company 1853-1921) made by Brookfield for American Telephone & Telegraph Co. (later AT&T Corp./AT&T Inc.) no damage (2 microflaws) telegraph/phone/toll 30 121 [010] Toll/Single Petticoat smooth base (SB, no drip points) 2.46"W x 3.87"H meas'd 13oz. (13.23oz. meas'd) No
gi26 American Telephone & Telegraph (Brookfield) 30 DSCF3503.jpg DSCF3504.jpg, DSCF3505.jpg AM TEL & TEL Co (made by Brookfield, but Hemingray, Western, and Sterling also made similar ones) on skirt with backwards 6 on top of dome ice aqua 1868-1921 (insulators 1865-1921, company 1853-1921) made by Brookfield for American Telephone & Telegraph Co. (later AT&T Corp./AT&T Inc.) minor damage (a few chips on upper wire ridge and skirt edge worn) telegraph/phone/toll 30 121 similar to [095] but with number on dome Toll/Single Petticoat smooth base (SB, no drip points) 2.59"W x 3.82"H meas'd 15oz. (15.20oz. meas'd) No
gi30 Brookfield 36 DSCF3538.jpg, DSCF3537.jpg DSCF3536.jpg BROOKFIELD on skirt with 00 on top of dome dark aqua (w/amber streak) 1908-1918 (insulators 1865-1921, company 1853-1921) no damage (1 microflaw) telegraph or power 36 162.1 [010] Double Petticoat round/smooth base (RB/SB, no drip points) 3.2"W x 4.0"H meas'd 20oz. (20.10oz. meas'd) No
gi41 Brookfield (B.G.M. Co.) 36 DSCF3713.jpg, DSCF3714.jpg, DSCF3712.jpg DSCF3710.jpg, DSCF3711.jpg BROOKFIELD NEW YORK on skirt (B.G.M. CO. blotted out under rear embossing) light aqua/ice aqua 1903-1908 (insulators 1865-1921, company 1853-1921) made by Baltimore Glass Manufacturing Company (1896 to 1903 est), which was shut down by court order for Brookfield patent infringement damaged (1 large chip on skirt) telegraph or power 36 162.7 similar to 162 [190] Double Petticoat smooth base (SB, no drip points) 3.23"W x 3.83"H meas'd 20oz. No
gi33 Star (Brookfield) 36 DSCF3535.jpg DSCF3533.jpg, DSCF3534.jpg Star-shaped symbol (made by Brookfield) on skirt aqua 1868-1921 (insulators 1865-1921, company 1853-1921) minor damage (1 small chip on top ridge of wire groove) telegraph or power 36 162.1 [010] Double Petticoat smooth base (SB, no drip points) 3.125"W x 4.0"H meas'd 20oz. (20.55oz. meas'd) No
gi21 Brookfield 38 DSCF3472.jpg DSCF3470.jpg, DSCF3471.jpg BROOKFIELD on skirt with backwards 6 on top of dome green aqua 1908-1918 (insulators 1865-1921, company 1853-1921) minor damage (worn) telegraph or power 38 164 [010] Double Petticoat smooth base (SB, no drip points) 3.2"W x 3.75"H meas'd 19oz. No
gi66 Brookfield 40 DSCF4246.jpg, DSCF4247.jpg, DSCF4245.jpg, DSCF4250.jpg DSCF4240.jpg, DSCF4251.jpg BROOKFIELD on skirt with backwards 4 on top of dome aqua 1868-1888 or 1908-1918 (insulators 1865-1921, company 1853-1921); 1864-1912 Brooklyn, NY; 1906-1921 Old Bridge, NJ minor damage (6 microflaws and flaking inside skirt at base edge) telegraph 40 152 similar to [010], but MLOB Double Petticoat smooth base (SB, no drip points) with mold line over base (MLOB) 3.71"W x 4.02"H meas'd 23oz. (23.15oz. meas'd) No
gi65 Hemingray 40 DSCF4234.jpg, DSCF4239.jpg, DSCF4238.jpg DSCF4232.jpg, DSCF4237.jpg HEMINGRAY No 40 on skirt aqua 1910-1921 (company 1848-1933) minor damage (1 microflaw and 1 broken drip point) telegraph 40 152 [040] Double Petticoat sharp drip points (SDP) 3.80"W x 4.20"H meas'd 23oz. (22.70oz. meas'd) No
gi9 Hemingray 40 DSCF3438.jpg DSCF3440.jpg HEMINGRAY No 40 on skirt aqua 1910-1921 (company 1848-1933) minor damage (1 drip point chipped) telegraph 40 152 [040] Double Petticoat sharp drip points (SDP) 3.72"W x 4.20"H meas'd 22oz. No
gi40 Hemingray 40 DSCF3718.jpg, DSCF3719.jpg, DSCF3720.jpg, DSCF3721.jpg DSCF3715.jpg, DSCF3716.jpg, DSCF3717.jpg HEMINGRAY No 40 PATENTED - MAY 2 1893 on skirt aqua 1910-1921 (company 1848-1933) minor damage (1 drip point chipped) telegraph 40 152 [080] Double Petticoat sharp drip points (SDP) 3.72"W x 4.04"H meas'd 22oz. No
gi18 Dominion 42 DSCF3415.jpg DSCF3413.jpg DOMINION-42 (D in diamond logo with 10 below) on skirt carnival clear 1927-1947 (before 1947-1959 drip points were eliminated) from mold #10 (Dominion Glass Company Ltd. 1913-1959) Wallaceburg, Ontario, Canada (Dominion possibly made insulators up until 1967) no damage telegraph/phone 42 153 similar to 154 [010 or 020] Double Petticoat round drip points (RDP) 3.67"W x 4.125"H meas'd 24oz. No
gi36 Dominion 42 DSCF3726.jpg, DSCF3727.jpg DSCF3725.jpg, DSCF3724.jpg DOMINION-42 (D in diamond logo with 11 below) 62 (to right of logo) on skirt clear 1962 (before 1947-1959 drip points were eliminated) from mold #11 (Dominion Glass Company Ltd. 1913-1959) Wallaceburg, Ontario, Canada (Dominion possibly made insulators up until 1967) no damage telegraph/phone 42 155 [010] Double Petticoat smooth base (SB, no drip points) 3.62"W x 4.10"H meas'd 24oz. No
gi3 Hemingray 42 DSCF3339.jpg DSCF3342.jpg HEMINGRAY-42 MADE IN U.S.A. on skirt dark aqua 1921-1959 (company 1848-1972) no damage telegraph/phone 42 154 [070] Double Petticoat round drip points (RDP) 3.75"W x 4.15"H meas'd 24oz. No
gi4 Hemingray 42 DSCF3340.jpg DSCF3341.jpg HEMINGRAY-42 MADE IN U.S.A. on skirt (front embossing blotted out) dark aqua 1921-1959 (company 1848-1972) minor damage (2 drip points chipped, 2 small chips on upper ridge of wire groove, and small chips inside inner skirt) telegraph/phone 42 154 [070] Double Petticoat round drip points (RDP) 3.7"W x 4.1"H meas'd 24oz. No
gi23 Hemingray 42 DSCF3498.jpg, DSCF3495.jpg DSCF3496.jpg, DSCF3497.jpg HEMINGRAY-42 MADE IN U.S.A. on skirt dark aqua 1921-1959 (company 1848-1972) minor damage (inside of 8 drip points flaked off) telegraph/phone 42 154 [090] Double Petticoat sharp drip points (SDP) 3.77"W x 4.21"H meas'd 24oz. No
gi8 Hemingray 42 DSCF3441.jpg DSCF3442.jpg HEMINGRAY-42 0-4 MADE IN U.S.A. on skirt (front embossing blotted out) clear (aqua tint) 1934 (division of Owens-Illinois Glass Co. 1933-1972) Muncie, IN minor damage (1 drip point chipped) telegraph/phone 42 154 [130] Double Petticoat round drip points (RDP) 3.75"W x 4.2"H meas'd 24oz. No
gi14 Hemingray 42 DSCF3430.jpg DSCF3431.jpg HEMINGRAY-42 8::::: MADE IN U.S.A. 13A on skirt clear 1948 with mold #13A from 1938 (division of Owens-Illinois Glass Co. 1933-1972) Muncie, IN no damage telegraph/phone 42 154 [140] Double Petticoat round drip points (RDP) 3.70"W x 4.0"H meas'd 24oz. No
gi2 Brookfield 44 DSCF3336.jpg DSCF3337.jpg B (for Brookfield) on skirt with G on top of dome aqua 1918-1921 (insulators 1865-1921, company 1853-1921) no damage telegraph (Western Union) 44 145 [010] Beehive/Double Petticoat smooth base (SB, no drip points) 3.15"W x 4.1"H meas'd 20oz. No
gi27 Brookfield 44 DSCF3501.jpg, DSCF3502.jpg DSCF3499.jpg, DSCF3500.jpg BROOKFIELD NEW YORK on skirt with backwards 1 on top of dome aqua 1903-1908 (insulators 1865-1921, company 1853-1921); 1864-1912 Brooklyn, NY; 1906-1921 Old Bridge, NJ minor damage (1 chip above 2nd O) telegraph (Western Union) 44 145 [030] Beehive/Double Petticoat smooth base (SB, no drip points) 3.16"W x 4.08"H meas'd 20oz. No
gi5 Brookfield 44 DSCF3332.jpg DSCF3328.jpg B (for Brookfield) on skirt aqua 1918-1921 (insulators 1865-1921, company 1853-1921) minor damage (2 bruises on dome, small ding and scratch on skirt) telegraph (Western Union) 44 145 [040] Beehive/Double Petticoat smooth base (SB, no drip points) 3.25"W x 4.2"H meas'd 20oz. No
gi62 Star (Brookfield) 44 DSCF4179.jpg, DSCF4180.jpg, DSCF4178.jpg DSCF4176.jpg, DSCF4177.jpg Star-shaped symbol (made by Brookfield) on skirt green 1868-1921 (insulators 1865-1921, company 1853-1921) no damage (4 microflaws) telegraph (Western Union) 44 145 [010] Beehive/Double Petticoat smooth base (SB, no drip points) 3.25"W x 4.15"H meas'd 20oz. (20.35oz. meas'd) No
gi32 Patented (Brookfield) 47 DSCF3542.jpg, DSCF3541.jpg DSCF3540.jpg, DSCF3539.jpg PATENTED (made by Brookfield) OCT. 8th 1907. on skirt aqua (w/amber streak) 1868-1921 (insulators 1865-1921, company 1853-1921) minor damage (2 small chips on crown) telegraph (Western Union) 47 147 [030] Double Petticoat smooth base (SB, no drip points) 3.0"W x 4.3"H meas'd 22oz. (22.50oz. meas'd) No
gi54 Pyrex (Corning) 63 DSCF4123.jpg, DSCF4121.jpg, DSCF4125.jpg, DSCF4126.jpg, DSCF4068.jpg, DSCF4067.jpg DSCF4129.jpg, DSCF4131.jpg, DSCF4070.jpg PYREX T.M. REG. U.S. PAT. OFF. MADE IN U.S.A. (P above the U in U.S.A.) 63 on skirt carnival peach/light amber 1922-1951 Corning Glass Works in Corning, NY (company 1875-present), maker of "Pyrex" insulators. The great majority of Pyrex insulators for the U.S. market were made between about 1922 and 1951. no damage (0 microflaws) power distribution 63 234 [010] Cable/Double Petticoat smooth base (SB, no drip points) 3.83"W x 3.14"H meas'd 15oz. (15.20oz. meas'd) No
gi42 Armstrong CSC DSCF4090.jpg, DSCF4091.jpg DSCF4089.jpg Armstrong's CSC MADE IN U.S.A. (A in circle logo) 25 48 (8 has Y behind it) on skirt clear 1948 with mold #25 (insulators and company 1938-1969, formerly Whitall Tatum) Millville, NJ no damage (4 microflaws) telegraph/phone/toll 22 128 [020] Toll/Single Petticoat smooth base (SB, no drip points) 2.66"W x 4.02"H meas'd 18oz. (17.85oz. meas'd) No
gi43 Hemingray CSC DSCF4112.jpg, DSCF4113.jpg DSCF4111.jpg HEMINGRAY C.S.C. MADE IN U.S.A. 32-51. on skirt clear 1952 with mold #32 from 1951 (company 1848-1933), (1914-1959) (division of Owens-Illinois Glass Co. 1933-1972) Muncie, IN no damage (0 microflaws) telegraph/phone/toll 22 128 [050] Toll/Single Petticoat corrugated base (CB, no drip points), with lead insert 2.65"W x 4.00"H meas'd 17oz. (17.20oz. meas'd) No
gi44 Whitall Tatum (Armstrong) CSC DSCF4099.jpg, DSCF4100.jpg DSCF4098.jpg WHITALL TATUM CSC MADE IN U.S.A. 17-45 (A in circle logo below numbers, with 2 dots, 1 dot on each side of logo, and small 42 below logo) on skirt clear 1947 with mold #17 from 1945 (insulators 1922-1938, company 1806-1938) Millville, NJ - (insulators and company 1938-1969, Armstrong was formerly Whitall Tatum) Millville, NJ no damage (3 microflaws) telegraph/phone/toll 22 128 similar to [030], but no dots (periods) on CSC Toll/Single Petticoat smooth base (SB, no drip points), with lead insert 2.66"W x 4.01"H meas'd 18oz. (17.55oz. meas'd) No
gi19 Armstrong DP1 DSCF3416.jpg DSCF3417.jpg Armstrong's DP 1 MADE IN U.S.A. (A in circle logo) 94 49 on skirt clear 1949 with mold #94 (insulators and company 1938-1969, formerly Whitall Tatum) Millville, NJ no damage telegraph/phone 45 155 [030] Double Petticoat smooth base (SB, no drip points) 3.6"W x 4.0"H meas'd 24oz. No
gi59 Surge (Babson Brothers) Fence DSCF4164.jpg, DSCF4163.jpg, DSCF4165.jpg DSCF4161.jpg, DSCF4162.jpg SURGE T.M. REQ. PAT. PEND BABSON BROS. CO. CHICAGO U.S.A. on skirt (Note typo on REG.) clear 1940-1955 Babson Brothers Company (insulators made by Hemingray 1940-1955, stocked until 1978) Chicago, IL (Surge #37102) minor damage (3 small dings) electric fence n/a 100 [030] Fence/Single Petticoat round drip points (RDP), 0.5" diameter threaded pin hole 2.25"W x 2.73"H meas'd 5oz. (5.35oz. meas'd) No
gi13 Hemingray TS DSCF3425.jpg DSCF3426.jpg HEMINGRAY 2-56. T.S. on skirt clear 1957 with mold #2 from 1956 (division of Owens-Illinois Glass Co. 1933-1972) Muncie, IN no damage telegraph/phone/transposition n/a 129 [010] Transposition/Single Petticoat corrugated base (CB, no drip points) 2.6"W x 3.75"H meas'd 15oz. (15.20oz. meas'd) No
gi22 Armstrong TW DSCF3473.jpg DSCF3468.jpg, DSCF3469.jpg (A in circle logo) rmstrong T.W. MADE IN U.S.A. 79 55. on skirt off clear/smoky straw 1956 with mold #79 from 1955 (insulators and company 1938-1969, formerly Whitall Tatum) Millville, NJ no damage telegraph/phone/transposition 56 203 [010] Transposition/Double Petticoat smooth base (SB, no drip points) 3.3"W x 3.95"H meas'd 20oz. No

* = Microflaws are aged (not manufactured) defects that are not obvious without careful and close visual inspection. These tiny flaws are so small that they do not normally distract from the aesthetic appearance of the artifact. Flaws can include cracks, bruises, chips, nicks, dings, scratches, wrinkles, wear (from abrasion), and even inclusions, such as debris within the glass or ceramic. Except for a surfaced bubble that causes a chip (after manufacturing), internal bubbles are not considered to be flaws due to their common occurance. Excessive bubbles (in either quantity or size) may be noted.


Vintage Glass Insulator

Electrical insulator (before cleaning), circa 1930's
This clear glass radio antenna strain insulator was sold by M.M. Fleron & Son, Inc. in Trenton, NJ. The Fleron company was in business from 1922 to 1941. The insulator shown is about 4.25 inches long (on 2.75-inch eye centers). Its upper end was machined flush.


NOTE: All photos on this web site are copyright protected. Please contact the owner to reuse the images elsewhere.

Also, visit the Porcelain Insulator Collection and the In-Service Insulator Photos.

Insulator Club Memberships
Insulator Collectors On the Net (ICON) #952 since 09/1998 National Insulator Association (NIA) #9079 since 03/2012

Back | Rob's Ham Shack (Home) | Nat Radio Co. (Home)
Copyright © 2011-2012 Nat Radio Co. All rights reserved. terms | privacy