Hemingray Insulator Profile: CD 121  
This common long distance toll style was produced by Hemingray as No.16, and was later replaced by CD 122 in the 1920s. Hemingray and Brookfield both produced this style for American Telephone and Telegraph Company as well. 

Dimensions: 3 3/4" H x 2 1/2" W
Primary
Embossings:
• AM. TEL. & TEL. CO.
• HEMINGRAY
Years Produced:
c.1890s1920s
Style Number:16
Rarity Scale (1-10): Extremely Common (1)
Trade Name: Long Distance
Hobby Nickname: Toll
Mold Variations Collapse
Early Prismatic Style
The earliest CD 121s are embossed with Hemingray or Am.Tel.&Tel.Co. in a prismatic style embossing. Note the straight sides of the skirt, rounded wire groove lips, and sides are wider than wire groove. [080] example pictured.
Later Hemingray Style
The later CD 121s embossed with Hemingray have slightly more flared skirts to them. The example pictured above also has an unusually large dome (which I like to call Frankenstein! Not necessarily rare, but a neat variant.)
Known Embossings (29) Collapse
 
AM. TEL. & TEL. CO. [095] (F-Skirt) AM TEL & TEL CO {Note no periods} SB Photo
AM. TEL. & TEL. CO. [110] (F-Skirt) AM.TEL.&TEL.CO. SB Photo
AM. TEL. & TEL. CO. [115] (F-Skirt) AM.TEL.& TEL.CO. {Note the bar is missing in the 'A'} SB Photo
AM. TEL. & TEL. CO. [120] (F-Skirt) AM.TEL.&TEL.CO. SDP Photo
AM. TEL. & TEL. CO. [125] (F-Skirt) AM.TEL.&TEL.CO. (R-Skirt) A SB Photo
AM. TEL. & TEL. CO. [130] (F-Skirt) AM.TEL.&TEL.CO. (R-Skirt) ['AM.TEL.&TEL.CO.' blotted out] SB Photo
HEMINGRAY [010] (Dome) 1 (F-Skirt) HEMINGRAY (R-Skirt) Nº 16 SDP Photo
HEMINGRAY [020] (Dome) 1 (F-Skirt) HEMINGRAY/Nº 16 (R-Skirt) HEMINGRAY SDP Photo
HEMINGRAY [021] (Dome) 1 (F-Skirt) HEMINGRAY/[Blotted out embossing] (R-Skirt) Nº 16 SDP
HEMINGRAY [023] (Dome) [Backwards number] (F-Skirt) HEMINGRAY (R-Skirt) Nº 16 SDP Photo
HEMINGRAY [025] (Dome) [Blotted out embossing] (F-Skirt) HEMINGRAY (R-Skirt) Nº 16 SDP
HEMINGRAY [030] (F-Skirt) HEMIGRAY {Note spelling} (R-Skirt) PATENT/MAY 2 1893 SDP Photo
HEMINGRAY [040] (F-Skirt) HEMIGRAY {Note spelling} (R-Skirt) PATENTED/MAY 2 1893 SDP Photo
HEMINGRAY [050] (F-Skirt) HEMINGAY/[Blotted out embossing] {Note spelling} (R-Skirt) PATENT/MAY 2 1893/[Blotted out embossing] SDP < WANTED! 
HEMINGRAY [060] (F-Skirt) HEMINGAY/['AM.TEL.&TEL.CO.' blotted out] {Note spelling} (R-Skirt) PATENTED/[Blotted out embossing] SDP Photo
HEMINGRAY [070] (F-Skirt) HEMINGRAY (R-Skirt) Nº 16 SDP Photo
HEMINGRAY [080] (F-Skirt) HEMINGRAY (R-Skirt) PATENT/MAY 2 1893 SB Photo
HEMINGRAY [090] (F-Skirt) HEMINGRAY (R-Skirt) PATENT/MAY 2 1893 SDP
HEMINGRAY [093] (F-Skirt) HEMINGRAY (R-Skirt) PATENT/MAY 2 1899/[Blotted out embossing] {Note 'MAY 2 1899' date} SDP < WANTED! 
HEMINGRAY [096] (F-Skirt) HEMINGRAY (R-Skirt) PATENT/MAY 2 1893 {Note 'A' in 'MAY' is missing bar} SB Photo
HEMINGRAY [098] (F-Skirt) HEMINGRAY (R-Skirt) PATENT/MAY 2 1893 {Note 'A' in 'MAY' is missing bar} SDP Photo
HEMINGRAY [100] (F-Skirt) HEMINGRAY (R-Skirt) PATENTED SDP Photo
HEMINGRAY [110] (F-Skirt) HEMINGRAY (R-Skirt) PATENTED/MAY 2 1893 RDP
HEMINGRAY [120] (F-Skirt) HEMINGRAY (R-Skirt) PATENTED/MAY 2 1893 SDP
HEMINGRAY [130] (F-Skirt) HEMINGRAY (R-Skirt) PATENTED/['AM.TEL.&TEL.CO.' blotted out] SDP Photo
HEMINGRAY [140] (F-Skirt) HEMINGRAY (R-Skirt) PATETED/MAY 2 1893 {Note spelling} SDP Photo
HEMINGRAY [150] (F-Skirt) HEMINGRAY/[Blotted out embossing] (R-Skirt) PATENTED/[Blotted out embossing] SDP
NEW! HEMINGRAY [155] (F-Skirt) HEMINGRAY/[Glass dot] (R-Skirt) PATENT/MAY 2 1893 SDP Photo
HEMINGRAY [160] (F-Skirt) HEMINGRAY/['AM.TEL.&TEL.CO.' blotted out] (R-Skirt) PATENTED SDP Photo

The following embossings were removed from the price guide because they could not be verified to exist:

Unverified Embossings
Year Removed





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