Leica's first M mount camera, the M3 is the origin of an enduring design that Leica is still using today, more or less unchanged. This M3 is just back from service, with accurate shutter speeds and a clear viewfinder. There is a small dent on the top panel near the frame counter, but it does not affect function; the bottom film door has some surface wear, and there is light wear on other surfaces- but nothing dramatic. This is a double-stroke model, for those who have a preference.