CD 100-144

Side wire groove - Single petticoat

CD 133.4

CD 133.4

Size: 69mm x 98mm (2.75" x 3.875")

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Years produced: c.1871-c.1880s
Style (CD) scarcity: 8, 1,000+ but desirable color/markings
Intended use: Telegraph
Style / catalog number: 3
Number of unique insulators: 46

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?

PATENT - DEC. 19, 1871

[010]

(FC) PATENT/DEC. 19. 1871 (FS) (Backwards B, C, F or H) (RC) 3

SB

Aqua

PATENT - DEC. 19, 1871

[010]

(FC) PATENT/DEC. 19. 1871 (FS) (Backwards B, C, F or H) (RC) 3

SB

Cornflower Blue

PATENT - DEC. 19, 1871

[010]

(FC) PATENT/DEC. 19. 1871 (FS) (Backwards B, C, F or H) (RC) 3

SB

Dark Blue Aqua

PATENT - DEC. 19, 1871

[010]

(FC) PATENT/DEC. 19. 1871 (FS) (Backwards B, C, F or H) (RC) 3

SB

Green

PATENT - DEC. 19, 1871

[010]

(FC) PATENT/DEC. 19. 1871 (FS) (Backwards B, C, F or H) (RC) 3

SB

Green Aqua

PATENT - DEC. 19, 1871

[010]

(FC) PATENT/DEC. 19. 1871 (FS) (Backwards B, C, F or H) (RC) 3

SB

Ice Aqua

PATENT - DEC. 19, 1871

[010]

(FC) PATENT/DEC. 19. 1871 (FS) (Backwards B, C, F or H) (RC) 3

SB

Light Aqua

PATENT - DEC. 19, 1871

[010]

(FC) PATENT/DEC. 19. 1871 (FS) (Backwards B, C, F or H) (RC) 3

SB

Light Citrine

PATENT - DEC. 19, 1871

[010]

(FC) PATENT/DEC. 19. 1871 (FS) (Backwards B, C, F or H) (RC) 3

SB

Light Green

PATENT - DEC. 19, 1871

[010]

(FC) PATENT/DEC. 19. 1871 (FS) (Backwards B, C, F or H) (RC) 3

SB

Light Sapphire Blue

PATENT - DEC. 19, 1871

[010]

(FC) PATENT/DEC. 19. 1871 (FS) (Backwards B, C, F or H) (RC) 3

SB

Light Yellow Green

PATENT - DEC. 19, 1871

[010]

(FC) PATENT/DEC. 19. 1871 (FS) (Backwards B, C, F or H) (RC) 3

SB

Sapphire Blue

PATENT - DEC. 19, 1871

[010]

(FC) PATENT/DEC. 19. 1871 (FS) (Backwards B, C, F or H) (RC) 3

SB

Yellow Green w/ Amber

PATENT - DEC. 19, 1871

[015]

(FC) PATENT/DEC. 19. 1871 (FS) (H or J) (RC) 3

MLOB

SB

Aqua

PATENT - DEC. 19, 1871

[015]

(FC) PATENT/DEC. 19. 1871 (FS) (H or J) (RC) 3

MLOB

SB

Green Aqua

PATENT - DEC. 19, 1871

[015]

(FC) PATENT/DEC. 19. 1871 (FS) (H or J) (RC) 3

MLOB

SB

Light Green Aqua

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 Aqua

PATENT - DEC. 19, 1871

[020]

(FC) PATENT/DEC. 19. 1871 (RC) 3

SB

Dark Blue 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

Dark Olive Amber

PATENT - DEC. 19, 1871

[020]

(FC) PATENT/DEC. 19. 1871 (RC) 3

SB

Dark Teal Blue

PATENT - DEC. 19, 1871

[020]

(FC) PATENT/DEC. 19. 1871 (RC) 3

SB

Green

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 Blue

PATENT - DEC. 19, 1871

[020]

(FC) PATENT/DEC. 19. 1871 (RC) 3

SB

Light Green

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

Teal Aqua

PATENT - DEC. 19, 1871

[030]

(FC) PATENT/DEC. 19. 1871 (RC) 3 (RS) (A, B, C, D, E or G)

SB

Aqua

PATENT - DEC. 19, 1871

[030]

(FC) PATENT/DEC. 19. 1871 (RC) 3 (RS) (A, B, C, D, E or G)

SB

Blue

PATENT - DEC. 19, 1871

[030]

(FC) PATENT/DEC. 19. 1871 (RC) 3 (RS) (A, B, C, D, E or G)

SB

Blue Aqua

PATENT - DEC. 19, 1871

[030]

(FC) PATENT/DEC. 19. 1871 (RC) 3 (RS) (A, B, C, D, E or G)

SB

Celery Green

PATENT - DEC. 19, 1871

[030]

(FC) PATENT/DEC. 19. 1871 (RC) 3 (RS) (A, B, C, D, E or G)

SB

Dark Aqua

PATENT - DEC. 19, 1871

[030]

(FC) PATENT/DEC. 19. 1871 (RC) 3 (RS) (A, B, C, D, E or G)

SB

Dark Blue Aqua

PATENT - DEC. 19, 1871

[030]

(FC) PATENT/DEC. 19. 1871 (RC) 3 (RS) (A, B, C, D, E or G)

SB

Dark Olive Green

PATENT - DEC. 19, 1871

[030]

(FC) PATENT/DEC. 19. 1871 (RC) 3 (RS) (A, B, C, D, E or G)

SB

Dark Yellow Green

PATENT - DEC. 19, 1871

[030]

(FC) PATENT/DEC. 19. 1871 (RC) 3 (RS) (A, B, C, D, E or G)

SB

Green

PATENT - DEC. 19, 1871

[030]

(FC) PATENT/DEC. 19. 1871 (RC) 3 (RS) (A, B, C, D, E or G)

SB

Ice Green

PATENT - DEC. 19, 1871

[030]

(FC) PATENT/DEC. 19. 1871 (RC) 3 (RS) (A, B, C, D, E or G)

SB

Light Aqua

PATENT - DEC. 19, 1871

[030]

(FC) PATENT/DEC. 19. 1871 (RC) 3 (RS) (A, B, C, D, E or G)

SB

Light Green

PATENT - DEC. 19, 1871

[030]

(FC) PATENT/DEC. 19. 1871 (RC) 3 (RS) (A, B, C, D, E or G)

SB

Light Purple

PATENT - DEC. 19, 1871

[030]

(FC) PATENT/DEC. 19. 1871 (RC) 3 (RS) (A, B, C, D, E or G)

SB

Olive Amber Blackglass

PATENT - DEC. 19, 1871

[040]

(FC) PATENT/DEC. 19. 1871 (E is missing middle bar) (RC) 3 (RS) (A or E)

SB

Aqua

PATENT - DEC. 19, 1871

[040]

(FC) PATENT/DEC. 19. 1871 (E is missing middle bar) (RC) 3 (RS) (A or E)

SB

Ice Aqua

PATENT - DEC. 19, 1871

[040]

(FC) PATENT/DEC. 19. 1871 (E is missing middle bar) (RC) 3 (RS) (A or E)

SB

Ice Green

  • [010] - Milky Aqua

    PATENT - DEC. 19, 1871

    [010]

    Milky Aqua

  • [010] - Yellow Green w/ Amber

    PATENT - DEC. 19, 1871

    [010]

    Yellow Green w/ Amber

  • [010] - Sapphire Blue

    PATENT - DEC. 19, 1871

    [010]

    Sapphire Blue

  • [010] - Medium Sapphire Blue

    PATENT - DEC. 19, 1871

    [010]

    Medium Sapphire Blue

  • [010] - Light Sapphire Blue

    PATENT - DEC. 19, 1871

    [010]

    Light Sapphire Blue

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