The Juwel-Klapp-Camera is an amateur folding camera made by Emil Wünsche in about 1900. It is for 9x12cm film plates. Notes at Historic Camera (probably based on the catalogue; the site shows a catalogue picture very like the one here) state that the camera was intended for tourists and cyclists. The body is of mahogany, with black leather covering. It has a Newton-type viewfinder and a pneumatically-triggered 'I' and 'B' shutter. It was offered with lenses from renowned makers: Voigtländer's Collinear, Steinheil's Orthostigmat or Goerz's double anastigmat. The cheapest variant had Wünsche's periscopic Rapid Aplanat, the medium quality variant a Wünsche Mars-Anastigmat.