Hemingray Insulator Profile: CD 100  
This cute little guy is an electric fence insulator produced by Hemingray for the Babson Bros. Co.'s Surge brand of farm equipment. It has a 1/2" pinhole, which was designed specifically to fit on Surge pins and fence posts. See also the less common CD 100.2

Dimensions: 2 3/4" H x 2 1/4" W
Primary
Embossing:
SURGE
Years Produced:
c.1940s-1950s
Rarity Scale (1-10): Common (3)
Usage: Electric Fence
Known Embossings (4) Collapse
 
SURGE Unlisted (F-Skirt) SURGE / REG. U.S. PAT. OFF. / ['T.M. REQ. PAT. PEND' blotted out] (R-Skirt) BABSON BROS. CO. / CHICAGO U.S.A. RDP Photo
SURGE [010] (F-Skirt) SURGE / REG.US.PAT.OFF. (R-Skirt) BABSON BROS.CO. / CHICAGO U.S.A. RDP Photo
SURGE [020] (F-Skirt) SURGE / T.M.REQ.PAT.PEND {Note spelling} (R-Skirt) BABSON BROS.CO. / CHCIAGO U.S.A. {Note spelling} RDP Photo
SURGE [030] (F-Skirt) SURGE / T.M.REQ.PAT.PEND {Note spelling} (R-Skirt) BABSON BROS.CO. / CHICAGO U.S.A. RDP Photo

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

Unverified Embossings
Year Removed
SURGE [040] (F-Skirt) SURGE / T.M.REQ.PAT.PEND / [Blotted out embossing] {Note spelling} (R-Skirt) BABSON BROS.CO. / CHCIAGO U.S.A. {Note spelling} RDP 2015





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