Object Number: 222697
Identifier:

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.