Leica II D Regular D.R.P. copia dorada en estuche de cuero (copia FED Zorki)
Leica I (C) started in 1930 has standardized lens mount - lenses now standardized and interchangeable from one body to another. Leica III has built-in coupled rangefinder. Leica II D Regular D.R.P. Elmar f3.5/50mm.