FRANKE & HEIDECKE, Braunschweig
A 120-rollfilm tele-Rolleiflex camera, no engraved serial number, with a Heidosmat f/4 135mm. viewing lens no. 2694989 and a Carl Zeiss Sonnar f/4 135mm. taking lens no. 2691359 in a Synchro-Compur shutter, in maker's leather ever ready case.