Original vintage magazine ad,  RUPP MANUFACTURING COMPANY of Mansfield, OH.  Rupp Continental mini bike cycles.  Custom, Special, Econocycle.  Old 1966 dated bicycle industry advertisement. The scanner shows a slight pink tint that is not in the actual ad.)

On the reverse side is (see additional images tab) is a fractional page ad for Go-Kyk Industries of Rothsay, MI.  Go-Byk Kit Can Motorize Most Bikes. Go-Kyks incorporates a 1 1/2 hp engine capable of propelling the unit down the road at speeds up to 40 mph. Old 1966 bicycle industry advertisement.

Approximate size 9 x 12 inches