This rare vintage KMZ Ajax-12 or F-21 subminiature Soviet-made coat button spy camera uses 21mm film. It comes with its coat button mount attachment. The shutter trigger part of the attachment appears to be uncoupled and does not work. The aperture adjustment functions properly. The camera has finish loss and a few scuffs and scratches on its exterior from its long life of espionage. All settings adjustments are smooth and all shutter speeds sound correct.
