I’ll have results to show from this later this week. This camera has a hemispherical film plane, which does two things: it makes the entire negative area equidistant from the pinhole, so it doesn’t have vignetting or fall-off toward the edges, and it produces a particular form of curvilinear distortion. 

The camera has an f/300 pinhole, which is quite a small aperture, requiring 186 times more light than f/22. So even full daylight exposures are quite long- 1/2 second. To control exposure, there is a built-in shutter that slides to the left. It also comes with a 52mm filter adapter, useful for things like shooting infrared or special effects filters. 

The brand name on it is Vermeer, and the maker is in Poland. He has a shop on EBay for these, and makes them in a variety of sizes and configurations, including anamorphic cameras. My one item on the wish list for it would be either a cold shoe for mounting a bubble level, or just built-in levels on two axes.