CD 100-144

Side wire groove - Single petticoat

CD 121

CD 121

Size: 63mm x 95mm (2.5" x 3.75")

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Years produced: c.1890s–1920s
Style (CD) scarcity: 8, 1,000+ but desirable color/markings
Intended use: Telephone
Style / catalog number: 16
Number of unique insulators: 94

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?

AM.TEL.&TEL.CO.

[095]

(FS) AM TEL & TEL Co (No periods)

SB

Aqua

AM.TEL.&TEL.CO.

[095]

(FS) AM TEL & TEL Co (No periods)

SB

Blue Aqua

AM.TEL.&TEL.CO.

[095]

(FS) AM TEL & TEL Co (No periods)

SB

Sage Green

AM.TEL.&TEL.CO.

[110]

(FS) AM.TEL.& TEL.Co.

SB

Aqua

AM.TEL.&TEL.CO.

[110]

(FS) AM.TEL.& TEL.Co.

SB

Blue Aqua

AM.TEL.&TEL.CO.

[110]

(FS) AM.TEL.& TEL.Co.

SB

Green Aqua

AM.TEL.&TEL.CO.

[110]

(FS) AM.TEL.& TEL.Co.

SB

Hemingray Blue

AM.TEL.&TEL.CO.

[110]

(FS) AM.TEL.& TEL.Co.

SB

Jade Green Milk

AM.TEL.&TEL.CO.

[110]

(FS) AM.TEL.& TEL.Co.

SB

Light Aqua

AM.TEL.&TEL.CO.

[110]

(FS) AM.TEL.& TEL.Co.

SB

Light Blue

AM.TEL.&TEL.CO.

[110]

(FS) AM.TEL.& TEL.Co.

SB

Light Blue Aqua

AM.TEL.&TEL.CO.

[110]

(FS) AM.TEL.& TEL.Co.

SB

Light Green Aqua

AM.TEL.&TEL.CO.

[110]

(FS) AM.TEL.& TEL.Co.

SB

Light Jade Green

AM.TEL.&TEL.CO.

[110]

(FS) AM.TEL.& TEL.Co.

SB

Milky Aqua

AM.TEL.&TEL.CO.

[110]

(FS) AM.TEL.& TEL.Co.

SB

Sage Gray

AM.TEL.&TEL.CO.

[110]

(FS) AM.TEL.& TEL.Co.

SB

Sage Green

AM.TEL.&TEL.CO.

[115]

(FS) AM.TEL.& TEL.Co. (A is missing the bar)

SB

Blue Aqua

AM.TEL.&TEL.CO.

[115]

(FS) AM.TEL.& TEL.Co. (A is missing the bar)

SB

Sage Green

AM.TEL.&TEL.CO.

[120]

(FS) AM.TEL.& TEL.Co.

SDP

Aqua

AM.TEL.&TEL.CO.

[125]

(FS) AM.TEL.& TEL.Co. (RS) A

SB

Hemingray Blue

AM.TEL.&TEL.CO.

[130]

(FS) AM.TEL.& TEL.Co. (RS) (AM.TEL.& TEL.Co. blotted out)

SB

Aqua

AM.TEL.&TEL.CO.

[UNL]

(FS) AMTEL & TEL Co (No Space between AM and TEL, No periods, SIM [095])

SB

Blue Aqua

AM.TEL.&TEL.CO.

[UNL]

(FS) AM TEL & TEL Co (No space between TEL and CO, SIM [095])

SB

Blue Aqua

AM.TEL.&TEL.CO.

[UNL]

(FS) AM TEL & TEL Co (One period, SIM [095])

SB

Sage Green

HEMINGRAY

[010]

(DO) 1 (FS) HEMINGRAY (RS) NO 16

SDP

Aqua

HEMINGRAY

[010]

(DO) 1 (FS) HEMINGRAY (RS) NO 16

SDP

Blue

HEMINGRAY

[010]

(DO) 1 (FS) HEMINGRAY (RS) NO 16

SDP

Blue Aqua

HEMINGRAY

[010]

(DO) 1 (FS) HEMINGRAY (RS) NO 16

SDP

Emerald Green

HEMINGRAY

[010]

(DO) 1 (FS) HEMINGRAY (RS) NO 16

SDP

Hemingray Blue

HEMINGRAY

[010]

(DO) 1 (FS) HEMINGRAY (RS) NO 16

SDP

Light Aqua

HEMINGRAY

[010]

(DO) 1 (FS) HEMINGRAY (RS) NO 16

SDP

Yellow Green

HEMINGRAY

[020]

(DO) 1 (FS) HEMINGRAY/NO 16 (RS) HEMINGRAY

SDP

Aqua

HEMINGRAY

[020]

(DO) 1 (FS) HEMINGRAY/NO 16 (RS) HEMINGRAY

SDP

Blue

HEMINGRAY

[020]

(DO) 1 (FS) HEMINGRAY/NO 16 (RS) HEMINGRAY

SDP

Blue Aqua

HEMINGRAY

[020]

(DO) 1 (FS) HEMINGRAY/NO 16 (RS) HEMINGRAY

SDP

Dark Green

HEMINGRAY

[020]

(DO) 1 (FS) HEMINGRAY/NO 16 (RS) HEMINGRAY

SDP

Green

HEMINGRAY

[020]

(DO) 1 (FS) HEMINGRAY/NO 16 (RS) HEMINGRAY

SDP

Hemingray Blue

HEMINGRAY

[020]

(DO) 1 (FS) HEMINGRAY/NO 16 (RS) HEMINGRAY

SDP

Light Blue Aqua

HEMINGRAY

[020]

(DO) 1 (FS) HEMINGRAY/NO 16 (RS) HEMINGRAY

SDP

Olive Green

HEMINGRAY

[020]

(DO) 1 (FS) HEMINGRAY/NO 16 (RS) HEMINGRAY

SDP

Yellow Green

HEMINGRAY

[021]

(DO) 1 (FS) HEMINGRAY/(Blotted out embossing) (RS) NO 16

SDP

Light Blue Aqua

HEMINGRAY

[023]

(DO) (Backwards number) (FS) HEMINGRAY (RS) NO 16

SDP

Aqua

HEMINGRAY

[025]

(DO) (Blotted out embossing) (FS) HEMINGRAY (RS) NO 16

SDP

Aqua

HEMINGRAY

[025]

(DO) (Blotted out embossing) (FS) HEMINGRAY (RS) NO 16

SDP

Green

HEMINGRAY

[025]

(DO) (Blotted out embossing) (FS) HEMINGRAY (RS) NO 16

SDP

Hemingray Blue

HEMINGRAY

[030]

(FS) HEMIGRAY (Note spelling) (RS) PATENT/MAY 2 1893

SDP

Aqua

HEMINGRAY

[040]

(FS) HEMIGRAY (Note spelling) (RS) PATENTED/MAY 2 1893

SDP

Aqua

HEMINGRAY

[040]

(FS) HEMIGRAY (Note spelling) (RS) PATENTED/MAY 2 1893

SDP

Aqua w/ Milk Swirls

HEMINGRAY

[050]

(FS) HEMINGAY/ (Blotted out embossing) (Note spelling) (RS) PATENT/MAY 2 1893/ (Blotted out embossing)

SDP

Aqua

HEMINGRAY

[060]

(FS) HEMINGAY/ (AM.TEL.& TEL.CO. blotted out, note spelling) (RS) PATENTED/ (Blotted out embossing)

SDP

Aqua

HEMINGRAY

[070]

(FS) HEMINGRAY (RS) NO 16

SDP

Aqua

HEMINGRAY

[070]

(FS) HEMINGRAY (RS) NO 16

SDP

Aqua w/ Milk Swirls

HEMINGRAY

[070]

(FS) HEMINGRAY (RS) NO 16

SDP

Blue Aqua

HEMINGRAY

[070]

(FS) HEMINGRAY (RS) NO 16

SDP

Emerald Green

HEMINGRAY

[070]

(FS) HEMINGRAY (RS) NO 16

SDP

Green

HEMINGRAY

[070]

(FS) HEMINGRAY (RS) NO 16

SDP

Hemingray Blue

HEMINGRAY

[070]

(FS) HEMINGRAY (RS) NO 16

SDP

Olive Amber

HEMINGRAY

[070]

(FS) HEMINGRAY (RS) NO 16

SDP

Olive Green

HEMINGRAY

[070]

(FS) HEMINGRAY (RS) NO 16

SDP

Yellow Green

HEMINGRAY

[080]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893

SB

Aqua

HEMINGRAY

[080]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893

SB

Hemingray Blue

HEMINGRAY

[080]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893

SB

Jade Aqua Milk

HEMINGRAY

[080]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893

SB

Milky Aqua

HEMINGRAY

[090]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893

SDP

Aqua

HEMINGRAY

[090]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893

SDP

Blue

HEMINGRAY

[090]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893

SDP

Blue Aqua

HEMINGRAY

[090]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893

SDP

Green

HEMINGRAY

[090]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893

SDP

Hemingray Blue

HEMINGRAY

[090]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893

SDP

Jade Aqua Milk

HEMINGRAY

[090]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893

SDP

Light Aqua

HEMINGRAY

[090]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893

SDP

Light Jade Aqua Milk

HEMINGRAY

[090]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893

SDP

Milky Aqua

HEMINGRAY

[090]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893

SDP

Milky Blue

HEMINGRAY

[090]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893

SDP

Olive Green

HEMINGRAY

[093]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1899/ (Blotted out embossing, Has 1899 instead of 1893)

SDP

Aqua

HEMINGRAY

[096]

(FS) HEMINGRAY (RS) PATENT/MVY 2 1893 (A in MAY is missing bar)

SB

Aqua

HEMINGRAY

[096]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893 (A in MAY is missing bar)

SB

Aqua w/ Milk Swirls

HEMINGRAY

[098]

(FS) HEMINGRAY (RS) PATENT/MAY 2 1893 (A in MAY is missing bar)

SDP

Aqua

HEMINGRAY

[100]

(FS) HEMINGRAY (RS) PATENTED

SDP

Aqua

HEMINGRAY

[100]

(FS) HEMINGRAY (RS) PATENTED

SDP

Light Aqua

HEMINGRAY

[110]

(FS) HEMINGRAY (RS) PATENTED/MAY 2 1893

RDP

Aqua

HEMINGRAY

[120]

(FS) HEMINGRAY (RS) PATENTED/MAY 2 1893

SDP

Aqua

HEMINGRAY

[120]

(FS) HEMINGRAY (RS) PATENTED/MAY 2 1893

SDP

Blue Aqua

HEMINGRAY

[120]

(FS) HEMINGRAY (RS) PATENTED/MAY 2 1893

SDP

Milky Aqua

HEMINGRAY

[120]

(FS) HEMINGRAY (RS) PATENTED/MAY 2 1893

SDP

Yellow Green

HEMINGRAY

[130]

(FS) HEMINGRAY (RS) PATENTED/(AM.TEL.& TEL.Co. blotted out)

SDP

Aqua

HEMINGRAY

[130]

(FS) HEMINGRAY (RS) PATENTED/(AM.TEL.& TEL.Co. blotted out)

SDP

Light Green

HEMINGRAY

[140]

(FS) HEMINGRAY (RS) PATETED/MAY 2 1893 (Note spelling)

SDP

Aqua

HEMINGRAY

[140]

(FS) HEMINGRAY (RS) PATETED/MAY 2 1893 (Note spelling)

SDP

Blue

HEMINGRAY

[140]

(FS) HEMINGRAY (RS) PATETED/MAY 2 1893 (Note spelling)

SDP

Blue Aqua

HEMINGRAY

[150]

(FS) HEMINGRAY/(Blotted out embossing) (RS) PATENTED/(Blotted out embossing)

SDP

Aqua

HEMINGRAY

[155]

(FS) HEMINGRAY/(Glass dot) (RS) PATENT/MAY 2 1893

SDP

Aqua

HEMINGRAY

[160]

(FS) HEMINGRAY/(AM.TEL.& TEL.Co. blotted out) (RS) PATENTED

SDP

Aqua

HEMINGRAY

[160]

(FS) HEMINGRAY/(AM.TEL.& TEL.Co. blotted out) (RS) PATENTED

SDP

Green Aqua

◄ 1 2 3 4 5 6 7 8 9 10 + ►
  • [121] - Aqua

    AM.TEL.& TEL.CO.

    [120]

    Aqua

  • [010] - Yellow Green

    HEMINGRAY

    [010]

    Yellow Green

  • [070] - Aqua w/ Amber

    HEMINGRAY

    [070]

    Aqua w/ Amber

  • [070] - Forest Green

    HEMINGRAY

    [070]

    Forest Green

  • [070] - Olive Green

    HEMINGRAY

    [070]

    Olive Green

  • [090] - Milky Blue Aqua

    HEMINGRAY

    [090]

    Milky Blue Aqua

  • [100] - Aqua

    HEMINGRAY

    [100]

    Aqua

    Details

    This example has an oddly wide profile and wide tapered skirt

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