The Kiev-4M is essentially a clone of the Contax III and an update on the Kiev-4. It was produced between 1976-87 by the Arsenal factory in the former Soviet Union, what is now Ukraine. The camera is a 35mm rangefinder with manual controls, using the Contax S lens mount. The camera underwent several revisions; there are at least five different major types of Kiev-4M cameras to find. While all Soviet cameras carry suspect reputations for quality, Kiev-4 and 4M cameras tend to work fairly reliably, though you should still approach them with some caution.
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Kiev 4M, Type 3b
The Kiev rangefinder cameras were produced in several different models, many of which have variants and sub-variants. This plethora of cameras can make identifying a Kiev a bit tricky at times. Luckily for us, this Kiev 4M is a Type 3, a designation reserved just for the Olympic models produced between 1979 and 1980 for the 1980 Summer Olympics held in Moscow, USSR. There are two sub-variants of the Type 3 though. According to online sources, this Kiev 4M pictured here is the Type 3b due to the white striping on the rewind knob. The Type 3a apparently has the old style, solid black, rewind knob... for what it's worth.
The serial number on this camera is 8001017, indicating it would have been produced in 1980.