This rare vintage Jules Carpentier Photo Jumelle Monocular camera uses 6.5x9cm plates. It comes with 18 plate holders. There are a couple of light scuffs on its exterior. There is haze inside of the lens, but it is free of any fungus or separation to its elements. Its shutter functions properly but is sluggish on all settings and its setting adjustment knob is loose. Its plate changing cocking mechanism is stuck on something and we cannot pull it out. The rear wooden panel on the viewing side is cracked. It comes with both original lens caps.