Samoca cameras were part of the initial wave of small viewfinder and rangefinder cameras to come out of Japan, in the decade following WWII, as Japanese camera makers started to consider seriously competing with those in Germany. Their Samoca 35 III came out right around 1955. There are about thirteen Samoca 35 models. The differences between models are typical of many older cameras and the improvements over time. The 35 III's top shutter speed is 1/100 of a second which limits its use in bright light. The shutter is a 'Vario type' shutter with speeds 1/25, 1/50, 1/100 of a second and B. The mushroom-shaped button at top right loads the shutter and disengages the film advance so you can crank to the next frame. You also use it to rewind when you're done. The camera has a Triplet C. EZUMAR Anastigmat coated, 50mm lens with apertures of 3.5 to 22. The Samoca 35 III was made in Japan by Sanei Sangyō K.K. (三栄産業㈱). Cameras were made under the Samoca brand name from 1952 to 1955. It was renamed to Samoca Camera K.K. (サモかカメラ㈱, Samoca Camera Co., Ltd.) in 1955. Samoca cameras and accessories were distributed by Hattori Tokei-ten at least until 1956. The company was renamed Sanei Sangyō again in 1958, and Samoca cameras are known at least until 1962 (Camerapedia).