The Steroco is an inexpensive tapered stereo box camera. The camera has matched 55/6.3 Tessar lenses in Derval or dial set Compur shutters. Available only in the 45 x 107mm format, it was given the Zeiss catalog number 612/1.
The Steroco was originally a Contessa product, continued through it's merger into Zeiss Ikon, to be discontinued in 1930.