The most expensive camera in the world is the Leica 0-Serie Nr. 107 (35mm SLR). Distinctive features of the Leica 0-Serie Nr.107 are the serial number «No. 0», which is engraved on the case, and the inscription «Germany». Only 25 copies were produced. The camera was sold at auction for $ 1,900,000 (from the site https://ubiznes.ru/)