By the way, when it arrives here it was really unusable. There was a heavy amount of hard grease on all gears and inside the camera. Also on the lens, it could only be turned by using force. So I disassembled it to clean it and found out that it is a FED S inside. The speed disk under the top cover has a hole vor 1/1000 of a second and this speed could be set and works fine after cleaning and relubing it. But the speed dial on the top is missing the 1/1000. I think that it sits the whole time on a shelf and was only used once or twice. Even the original shutter curtains are soft and look like new.