Interesting points raised here. I have read that Contax parts were rifled from the Dresden factory at the end of the war and some Contax faceplates rolled out to be engraved "KNEB" back in Russia for early Kiev production. But I doubt that the Russians found a 1937 serial number camera in the factory and modified that. Anyway, the serial number engraving on the back looks suspiciously fresh - indicating a recent forgery. My conclusion is that this camera is a "bitsa" - the shutter crate (with a knackered shutter) and back are definitely early Kiev. The face plate is later Kiev as it has both the Cyrillic and Arabic "Kiev" engravings still visible on the back. The top plate could be any age as I don't think the design of this changed.
What I can't fathom is that if an early Kiev is worth more than a Contax - why on earth didn't the forger engrave "KNEB" on the later faceplate, avoid the bother of embossing the ZI logo on the back and falsifying the serial numbers - and make more money ?
Can anyone help me roughly date this camera ? When were the Kiev faceplate and back designs modified from Contax II style to more closely match the post war Contax ?
I must add that Oleg Khalyavin has fixed the shutter and CLA'd this camera beautifully. It's quite a joy to use - some consolation in the circumstances!