Manufacturing of the Voskhod started at the time between the end of GOMZ (1962) and the start of LOMO (1965). During that period the factory was known as LOOMP (The Leningrad Union of Optical/Mechanical Enterprises). Cameras produced during this period have the LOOMP name in cyrillic on the lens ring. Later cameras are markied LOMO. In addition, the earlier cameras have no visible screw heads on the corners of the face-plate and have two additional screws on the meter housing inside the back of the camera. The general specification of the camera is the same as the later version.

David Tomlinson.