Insulators Home > My Collection > Other Materials > Continental Rubber Works R-4
Material: Rubber
Manufacturer: Continental Rubber Works
Mnrf Code: R-4
Year: 1930s-1970s
Color: Black
Size: 3.625 inch height; 2.375 inch base width
Usage: Telephone Long Distance (replaced glass insulators in areas where frequently damaged)
Embossing Exact: (Dome) 94 [dot] 80 (F-Crown) CONTINENTAL RUBBER WORKS / ERIE,PA. U.S.A. (Side-Crown) 9-B (R-Crown) PATS.2218497 / 2304483
Embossing Example: (Dome) [numbers and dot] (F-Crown) CONTINENTAL RUBBER WORKS / ERIE,PA. U.S.A. (Side-Crown) [Mold code] (R-Crown) PATS.2218497 / 2304483
Acquired: January 27, 2004 - gift from Chris S.
Condition: 2 small fleabites on dome; a few small dents on the body
Notes: similar to CD 103
Value: unknown
Insulators Home > My Collection > Other Materials > Continental Rubber Works R-4
Contact: A.C. Walker