That's not a camera, this is a camera. Specifically a screw mount rangefinder built from 1961 to 1964. It make the Leica M3 seem stealth by comparison. It does add a meter conveniently located on the top plate and allows for the selection of 35/50/85,100 frame lines. There is also an option to lock the shutter release. Top shutter speed is 1/1000. All this plus the film advance and the rewind don't leave much room on the top, so no hot shoe. For that you'll have to add an accessory shoe.