Insulators Home > My Collection > Other Materials > Continental Rubber Works R-3
Material: Rubber
Manufacturer: Continental Rubber Works
Mnrf Code: R-3
Year: 1930s-1970s
Color: Black
Size: 3.125 inch height; 1.375 inch base width
Usage: Telegraph (replaced glass insulators in areas where frequently damaged)
Embossing Exact: (Dome) R [dot] 3 (F-Crown) CONTINENTAL / RUBBER WORKS U.S.A. (Side-Crown) 4-C (R-Crown) W.U. TEL. Co. / PAT. 3 061 667
Embossing Example: (Dome) R [dot] 3 (F-Crown) CONTINENTAL / RUBBER WORKS U.S.A. (Side-Crown) [Mold code] (R-Crown) W.U. TEL. Co. / PAT. 3 061 667
Acquired: July 20, 2004 - gift from Pat S.
Condition: scraping in threads; 0.75-inch scrape on base
Notes: somewhat similar to CD 102; retrieved from Union Pacific in Racine, WI
Value: unknown
Insulators Home > My Collection > Other Materials > Continental Rubber Works R-3
Contact: A.C. Walker