Zeiss Ikon Kolibri

Manufactured from 1930 to 1935, with a Tessar 1:3,5 f= 5cm Nº 1240280 Carl Zeiss Jena lens, according the serial number of the lens, this unit was manufactured in 1931. This example is marked with the S 91800 serie, according Zeiss Ikon reasearch, this serie started at S 91001 to S 92000, 1000 units of this serie, 17.000 units in total.