Rollei Rolleiflex 3.5 Camera 75mm Lens Franke Heidecke DBP DGBM Twin Reflex The camera body is labeled DPB, 1735944 DBGM. The dual lenses are a a Heidosmat 1:2.8 75mm, serial # 2048992 Carl Zeiss Tessar 1:3.5 75mm, serial # Nr 1583847 Made in Germany