Single Pole: Marks Product Co "Snapit" Porcelain

3 5/8" X 1 1/4" (93mm X 33mm)

 

(embossed) MARKS PROD Co INC.

GND / SNAPIT / SNAPIT / ANT.

BROOKLYN N.Y. U.S.A.

3 5/8" X 1 1/4" (93mm X 33mm)

 

Picture courtesy Jim Fielding

These single pole versions were used to connect a single wire to ground. This is cobalt blue glazed dry process porcelain.


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