1934, “Union of Optico Mechanical Factories” (VOOMP)
Delivered to Ernst Leitz Junior on Christmas Eve 1924
One of the 95 “Luxus” Leica cameras ever produced between 1929 and 1931
The bible for darkroom work
Pentax Photographer's companion by Herbert Keppler
1948, “State Optical Institute” (GOI) Leningrad, USSR