Vintage Miyagawa Boltax I Subminiature Spy Camera F=40mm Picner Lens Photography. Quite an interesting little camera at approximately 2″ by 3″. The condition is fair with dust and tarnish so please view all photos. I’m in no way an expert but the shutter works and the rest of the controls appear to function as well, that said this camera is not guaranteed to work and the availability of film is another question. I consider this to be a collectible and displayable camera, functionality is not guaranteed.