Rubber Printing Plate Co. c.1965
Incorporated in July 1965, dissolved in January 1989, this Milwaukee, WI company likely did some kind of manufacturing of plates, made of rubber, for printing. This promotional Lufkin® White Clad® tape measure has both a traditional Imperial rule, as well as a nifty little Pi Tape, or O.D. (outside diameter) rule on the back, in inches, divided by 100ths.
