Cosmetic: Good condition, minimal marks to camera body.
The standard OLIGO single exposure housing was introdcued in 1934 with a second model, the OLEYO, arriving in 1937. They were last listed in 1937 and 1939 respectively. The square-body model was apparently never formally advertised nor assigned a Leitz code word. Various writers suggest that it was under development in the late 1930s.