Probably a variation of the System Miethe Bermpohl Naturfarbencamera. Here's a link to one made out of wood http://www.vintagephoto.tv/bermpohl_img.shtml another possibility is the Leroychrome Color Separation camera which works like the Bermpohl camera but is made out of metal http://www.collectorsweekly.com/stor...paration-camer.
I'd love to own either a Miethe/bermpohl or a leroychrome camera.

Dominik