Popular Name:
Brook's Ramshorn
Primary Embossing:
Material: Glass cemented in iron
Color: Black
Condition: TBD
Specific Embossing: (Outer Circle) PAT'D NOV 29 64 MAR 26 OCT 8
67 JULY 26 70 (Inner Circle) REISSUE AUG 6 67
Notes:
Donated in 1904
Catalog Card Description: Brooks Screw Shank Insulator Iron hook
for holding telegraph line wire cemented into bottle-shaped glass
insulator which is cemented into an iron case 2" in diameter and
6" long, provided with a screw-shank, 5" long, set at right angle
to the case.
NIA Notes:
This style of Brook's insulator is very rare.
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