Motion picture projector, International Projector Company 35mm Simplex E-7, undated
Motion picture projector, International Projector Company 35mm Simplex E-7, undated Description Simplex 35mm E-7, #E-682, with RCA Photophone sound head, with upper and lower magazines, Precision Scientific Co. pedestal, Chas. Beseler Co. rheostat (serial# 6812), …