This fascinating camera dates back to 1896. The virtual camera museum has a 360 view of it here.
There is more information on it here.
It has a different holes in the plate at the top so there are multiple apertures. The shutter speed has two settings - you can control how far the circular plates swings round.
Shot was 3 exposures on the 5DIII and 24-70II combined in Efex HDR.