Tessina camera. Subminiature camera for 35mm film 14 x 21mm. Coated tessinon lens F: 25mm f 2.8-22. 2 blade shutter 2/4/8/15/30/60/125/250/500/B/X/F/M flash synchronisation. Coaxial socket. Clockwork motor for automatic wind on. Reflex focusing viewfinder, adjustable to 1 foot, depth of field indicator. Collapsing sports finder, optical type. Film at right angle to optical path of lens. Pictures taken via surface of a silvered mirror. With wrist strap. Manufactured by Concava AG, Switzerland. c.1961

Tessina camera made by Concava in Switzerland from 1956 to 1966.

A subminiature camera for 35mm film loaded into special cassettes. The Tessina took 35mm film which ran horizontally through the camera. A mirror behind the lens reflected the image on to the film. A second lens, coupled to the taking lens, produced an image on a reflex focusing screen, fitted with a folding hood which incorporated an optical frame viewfinder. The Tessina was small enough to be worn on the wrist - a detachable strap was supplied for this purpose.