This is a nice non-TTL M6 in excellent condition, with accurate shutter speeds and metering, good rangefinder, and only very minor cosmetic wear. Real leather covering with a smooth texture, not the usual pebbled leather, which is most likely an aftermarket addition, but feels pretty nice. Worth noting that the the rewind crank (not the whole dial, just the crank) is black rather than chrome. I don't think this an undocumented special edition, but what if it was???? It's not though. Just returned from service and ready to shoot.