One of the first all-metal cameras, invented by Napoleon Conti 1888. Spring powered hemispherical sector shutter with variable speeds. Attached is a removable reflecting view-finder.
This example, serial no 201, for 9x12 cm plates held in double dark slides. Later a magazine back was offered.
Other sizes were 8x9 cm, 13x18 cm and 9x18 cm for stereo photography.

A rare camera! With even rarer maker's case.