Neubert Neuca Prototype

Recently discovered prototype of the extremely rare early German post-war Leica copy Neuca. The camera has some details similar to the Neuca prototype illustrated in: LEICA COPIES by HPR, the top plate is not engraved, with coupled rangefinder, M39 screw mount, strap lugs, shutter speeds: Z, 20, 30, 40, 60, 100, 200, 500, with very interesting shutter mechanism, vulcanite covering, no removable back, in full working condition - the beautiful camera comes with a Carl Zeiss Jena Sonnar 2/5cm no.3095467. Provenience: the estate of a camera technician from Jena