CD 135 CHICAGO INSULATING CO. [ Back | Up | Next ]

CD 135

CHICAGO INSULATING CO.

[020] (Upper shoulder) CHI.INS.CO. PAT.OCT. 16. 1883 (F-Skirt) [Glass dots may be present] SB

Blue . . . . . . . . . . . . . . . $75-100

The Chicago diamond groove. The strange cutouts around the wire groove were designed to reduce the contact with the tie wire.

2 7/8" x 3 1/2" 
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