The Purma Special was introduced in 1937 and manufactured until 1951. This was a particularly unusual-looking bakelite camera, featuring a unique shutter and lens mechanism. The lens was spring loaded, being pushed back into the camera when the lens cap was replaced; preventing the photographer from making an exposure whilst the cap was on.
The Purma Special takes 16 1.25 inch square photos on a 127mm film. Two red windows on the rear of the camera are used to align the frame when advancing the film.