Steineck ABC Wristwatch Camera
Made in Germany by Steineck Kamerawerk. Subminiature camera for discs of film 25mm diameter, 8 exposures 7mm diameter. Steinhetl VI lens F:12.5mm f/2.8 fixed aperture, coated cobir enamel. Two-speed rotary shutter. Refelcting finder - concave mirror and ball and pin sight. Wristwatch shaped, on green leather strap. Could be Steiner-Optik GmbH?. Designed in Germany by Dr R Steineck.