CD 100-144
Side wire groove - Single petticoat
Years produced: c.1870s-1910s
Style (CD) scarcity: 8, 1,000+ but desirable color/markings
Intended use: Telegraph Telephone
Style / catalog number: 3, 7, 20, Standard
Number of unique insulators: 76
Notes: Being made for 40+ years, there are several different mold styles. See below photos for examples.
Primary Embossing = Embossing on the front of the insulator, usually is that manufacturers name or the customers name. No embossing units will be noted as NO EMBOSSING. Units with no name but with numbers or letters will be noted as NO NAME.
Examples:
HEMINGRAY
S.B.T.&.T.Co
NO NAME
NO EMBOSSING
EIN = Embossing Index Number is a standardized way to identify each unique embossing.
(FS) = Front Skirt
(RS) = Rear Skirt
(DO) = Dome
(CR) = Crown
(FC) = Front Crown
(RC) = Rear Crown
(BG) = Between Grooves
(FA ) = Front, Above wire groove
(FB) = Front, Below wire groove
(BE) = Base Embossed
(FU) = Front Umbrella
(RU) = Rear Umbrella
(FCE) = Front Center
(RCE) = Rear Center
(TE) = Top Ear
(TOP) = Top of Pinhole
/ = Next line of embossing
There are unique characteristics of the insulator that are not related to the embossing, but is worth noting.
Examples:
Factory molded brass bushing
Flaired skirt
MLOB = Mold Line Over Base
Waffle top
Wide saddle groove
Base = the bottom of the insulator. It is noted in the following standardized ways.
SDP = Sharp Drip Points
RDP = Round Drip Points
CB = Corrugated Base
SB = Smooth Base
= Insulator has been verified that exists
= Insulator has been verified that exists, but not listed in the "guide"
= Insulator has not yet been verified as existing
= Suspected error listing in the "guide" because listing does not match up with known manufacturing practices. Such as numbers and dots on an aqua insulator, or insulators listed with both factory molded brass bushing and without. Many do not come in both configurations and are listed as coming in both. Etc.
Color = The approximate color of the insulator. Due to manufacturing variations, insulators with the same color name maybe slightly different in actual appearance.
| Primary Embossing | EIN | Embossing | Special Features | Base | Color | Verified? |
H.G.CO. | [005] | (FS) H G CO/PATENT MAY 2 1893 (No periods) (RS) STANDARD | SDP | Aqua | ||
H.G.CO. | [005] | (FS) H G CO/PATENT MAY 2 1893 (No periods) (RS) STANDARD | SDP | Hemingray Blue | ||
H.G.CO. | [007] | (FS) H.G.CO. (RS) N 7/STANDARD (No O) | SB | Aqua | ||
H.G.CO. | [010] | (FS) H.G.CO. (RS) NO 7/STANDARD (No line under O) | SB | Aqua | ||
H.G.CO. | [010] | (FS) H.G.CO. (RS) NO 7/STANDARD (No line under O) | SB | Clear | ||
H.G.CO. | [010] | (FS) H.G.CO. (RS) NO 7/STANDARD (No line under O) | SB | Green | ||
H.G.CO. | [010] | (FS) H.G.CO. (RS) NO 7/STANDARD (No line under O) | SB | Ice Aqua | ||
H.G.CO. | [010] | (FS) H.G.CO. (RS) NO 7/STANDARD (No line under O) | SB | Light Blue | ||
H.G.CO. | [010] | (FS) H.G.CO. (RS) NO 7/STANDARD (No line under O) | SB | Light Green | ||
H.G.CO. | [010] | (FS) H.G.CO. (RS) NO 7/STANDARD (No line under O) | SB | Light Steel Blue | ||
H.G.CO. | [010] | (FS) H.G.CO. (RS) NO 7/STANDARD (No line under O) | SB | Orange Amber | ||
H.G.CO. | [010] | (FS) H.G.CO. (RS) NO 7/STANDARD (No line under O) | SB | Powder Blue | ||
H.G.CO. | [010] | (FS) H.G.CO. (RS) NO 7/STANDARD (No line under O) | SB | Purple Tint | ||
H.G.CO. | [020] | (FS) H.G.CO. (RS) NO 7/STANDARD (S is backwards) | SB | Aqua | ||
H.G.CO. | [020] | (FS) H.G.CO. (RS) NO 7/STANDARD (S is backwards) | SB | Blue Aqua | ||
H.G.CO. | [020] | (FS) H.G.CO. (RS) NO 7/STANDARD (S is backwards) | SB | Ice Aqua | ||
H.G.CO. | [020] | (FS) H.G.CO. (RS) NO 7/STANDARD (S is backwards) | SB | Light Green | ||
H.G.CO. | [030] | (FS) H.G.CO. (RS) STANDARD | SB | Aqua | ||
H.G.CO. | [030] | (FS) H.G.CO. (RS) STANDARD | SB | Light Aqua | ||
H.G.CO. | [040] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) NO 20 | SDP | Aqua | ||
H.G.CO. | [040] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) NO 20 | SDP | Light Green | ||
H.G.CO. | [050] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) NO 20/(STANDARD blotted out) | SDP | Aqua | ||
H.G.CO. | [060] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SB | Aqua | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Apple Green | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Aqua | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Depression Glass Green | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Green | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Hemingray Blue | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Ice Aqua | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Ice Green | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Jade Green Milk | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Lemon | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Light Aqua | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Light Green | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Light Green Aqua | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Light Jade Lime Green | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Light Yellow Green | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Lime Green | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Milky Aqua | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Milky Hemingray Blue | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Milky Lime Green | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Sage Gray | ||
H.G.CO. | [070] | (FS) H.G.CO./PATENT MAY 2 1893 (RS) STANDARD | SDP | Yellow Green | ||
H.G.CO. | [080] | (FS) H.G.CO./PATENT MAY 2 1893 (9 is engraved over an 8) (RS) STANDARD | SDP | Aqua | ||
H.G.CO. | [090] | (FS) H.G.CO./PATENT MAY 2 1893 (A in MAY is missing bar) (RS) STANDARD | SDP | Aqua | ||
H.G.CO. | [090] | (FS) H.G.CO./PATENT MAY 2 1893 (A in MAY is missing bar) (RS) STANDARD | SDP | Green | ||
H.G.CO. | [090] | (FS) H.G.CO./PATENT MAY 2 1893 (A in MAY is missing bar) (RS) STANDARD | SDP | Ice Aqua |
| |
H.G.CO. | [090] | (FS) H.G.CO./PATENT MAY 2 1893 (A in MAY is missing bar) (RS) STANDARD | SDP | Light Lime Green | ||
HEMINGRAY | [010] | (FS) HEMINGRAY (RS) PATENT/MAY 2 1893 | SDP | Aqua | ||
HEMINGRAY | [010] | (FS) HEMINGRAY (RS) PATENT/MAY 2 1893 | SDP | Blue Aqua | ||
HEMINGRAY | [010] | (FS) HEMINGRAY (RS) PATENT/MAY 2 1893 | SDP | Dark Aqua | ||
HEMINGRAY | [015] | (FS) HEMINGRAY/NO 20 (RS) PATENT MAY 2 1893 | RDP | Aqua | ||
HEMINGRAY | [020] | (FS) HEMINGRAY/NO 20 (RS) PATENT MAY 2 1893 | SDP | Aqua | ||
HEMINGRAY | [030] | (FS) HEMINGRAY/PATENT MAY 2 1893 (RS) STANDARD | SDP | Aqua | ||
HEMINGRAY | [030] | (FS) HEMINGRAY/PATENT MAY 2 1893 (RS) STANDARD | SDP | Blue Aqua | ||
HEMINGRAY | [030] | (FS) HEMINGRAY/PATENT MAY 2 1893 (RS) STANDARD | SDP | Light Green | ||
NO EMBOSSING | [010] | (No embossing) | SB | Hemingray Blue | ||
NO EMBOSSING | [020] | (No embossing) | SDP | Aqua | ||
NO EMBOSSING | [020] | (No embossing) | SDP | Blue Aqua | ||
NO EMBOSSING | [025] | (No embossing) (DEC 19, 1871 Patent style) | SB | Celery Green | ||
NO EMBOSSING | [025] | (No embossing) (DEC 19, 1871 Patent style) | SB | Dark Green | ||
NO EMBOSSING | [026] | (No embossing) (DEC 19, 1871 Patent style) | Small diameter pinhole | SB | Aqua | |
PATENT - DEC. 19, 1871 | [010] | (FC) PATENT/DEC. 19. 1871 | SB | Aqua | ||
PATENT - DEC. 19, 1871 | [010] | (FC) PATENT/DEC. 19. 1871 | SB | Ice Aqua | ||
PATENT - DEC. 19, 1871 | [010] | (FC) PATENT/DEC. 19. 1871 | SB | Light Green | ||
PATENT - DEC. 19, 1871 | [010] | (FC) PATENT/DEC. 19. 1871 | SB | Light Purple | ||
PATENT - DEC. 19, 1871 | [010] | (FC) PATENT/DEC. 19. 1871 | SB | Purple | ||
PATENT - DEC. 19, 1871 | [020] | (FC) PATENT/DEC. 19. 1871 (RC) 3 | SB | Aqua | ||
PATENT - DEC. 19, 1871 | [020] | (FC) PATENT/DEC. 19. 1871 (RC) 3 | SB | Dark Green | ||
PATENT - DEC. 19, 1871 | [020] | (FC) PATENT/DEC. 19. 1871 (RC) 3 | SB | Green Aqua | ||
PATENT - DEC. 19, 1871 | [020] | (FC) PATENT/DEC. 19. 1871 (RC) 3 | SB | Light Aqua | ||
PATENT - DEC. 19, 1871 | [020] | (FC) PATENT/DEC. 19. 1871 (RC) 3 | SB | Light Gray | ||
PATENT - DEC. 19, 1871 | [020] | (FC) PATENT/DEC. 19. 1871 (RC) 3 | SB | Milky Aqua | ||
PATENT - DEC. 19, 1871 | [020] | (FC) PATENT/DEC. 19. 1871 (RC) 3 | SB | Purple | ||
PATENT - DEC. 19, 1871 | [020] | (FC) PATENT/DEC. 19. 1871 (RC) 3 | SB | Sage Green | ||
PATENT - DEC. 19, 1871 | [020] | (FC) PATENT/DEC. 19. 1871 (RC) 3 | SB | Teal Aqua | ||
PATENT - DEC. 19, 1871 | [030] | (FC) PATENT/DEC. 19-1871 (Has hyphen between 19 and 1871) (RC) 3 | SB | Aqua |
![[010] - Oarnge Amber](index_files/small-21905.jpg)
H.G.CO.
[010]
Orange Amber
![[010] - Powder Blue](index_files/small-21912.jpg)
H.G.CO.
[010]
Powder Blue
![[010] - Off CLear](index_files/small-21898.jpg)
H.G.CO.
[010]
Off Clear
![[010] - Green](index_files/small-21870.jpg)
H.G.CO.
[010]
Green
![[070] - Green](index_files/small-21877.jpg)
H.G.CO.
[070]
Green
![[070] - Milky Aqua](index_files/small-21891.jpg)
H.G.CO.
[070]
Milky Aqua
![[090] - Light Lime Green w/ Milk](index_files/small-21884.jpg)
H.G.CO.
[090]
Light Lime Green w/ Milk
![[026] - NO EMBOSSING](index_files/small-21919.jpg)
NO EMBOSSING
[026]
Aqua
![[020] - Dark Yellow Green](index_files/small-21841.jpg)
PATENT - DEC. 19, 1871
[020]
Dark Yellow Green
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