No expert...still learning and experiencing...from the front view, it is a Leica III (in USA Model F) [what is the serial no.?] in black paint with nickel fittings and nickel 5cm f2 Summar...notice the bigger chrome speed dial...due to limited view, I suspect it should have been changed or upgraded subsequently to Leica IIIa (in USA Model G) with 1/1000sec shutter speed and flash synchro [look at the back of the camera, is there a flash socket?]...i.e. a beautiful conversion set...:thumbsup: