Zeiss Ikon, Dresden. No. A 46669, Sonnar 2/5 cm, no. 1752887. Well-preserved Albada viewfinder, version with small "Contaflex" engraving on lightmeter cap. Exposure meter working. 1st built-in electrical exposure meter in the world, with case.
A milestone in camera history.
Reserve: 700/US$ 980