Kodak Retina I Type 010 Early Xenar 5cm 50mm f/3.5 Lens 1945-1949 sn 52542

This is a used, working, Kodak Retina I Type 010/0 (Early). Schneider-Kreuznach Retina-Xenar 5cm f/3.5 lens. Compur Shutter. Made in 1945-1949.