I am interested in gaining some more information about a Leica camera, specifically the Ernst Leitz Wetzlar D.R.P with serial No.125499. There are two other production numbers inscribed within the bottom plate. The camera has a black body with black top and bottom plates and chrome knobs etc but unfortunately there is no lens. I am unable to find the particular serial number on any Leica Serial Number List websites. I would be very grateful if any-one has any information on what model this could be? Thankyou.