Continental Rubber Works
R-3(PONY) 1-5/16" X 3"

Base Type Dome Front Crown Rear Crown Color Notes Ref. #
SB R-3 CONTINENTAL/
RUBBER WORKS U.S.A.		 W.U.TEL.CO. 7-A/
PAT.2,218,497		 black

Continental Rubber Works
R-4(Pony) 2-3/8" X 3-3/4"

Base Type Dome Front Crown Rear Crown Color Notes Ref. #
SB R(rubber dot)4 CONTINENTAL/
RUBBER WORKS U.S.A.		 W.U.TEL.CO./
22 PAT. 2,218,497 0-B		 black

SB R(rubber dot)4 CONTINENTAL/
RUBBER WORKS U.S.A.		 W.U.TEL.CO./
27 PAT. 2,218,497 0-B		 black

SB R(rubber dot)4 CONTINENTAL/
RUBBER WORKS U.S.A.		 W.U.TEL.CO./
32 PAT. 3061667 3-C		 black

SB 94(rubber dot)80 CONTINENTAL RUBBER WORKS/
ERIE PA USA		 2-D PAT-3061667 black