French Pinhole Field Camera

13x18cm, polished walnut body with maroon leather bellows. The camera has a very unusual lens attachment to take pictures of a very bright source of light (e.g. the sun) consisting of a revolving brass plate which holds 4 lenses and 4 pinholes. While the lenses are used to focus, the actual photo is exposed through the pinholes. To select a specific aperture, the disc can be turned with a central knob. At each stop the matching number (3, 4, 5, or 6 ) appears in a small display window. The camera was modified for experimental purposes and is in good condition.