C.P. Goertz, Berlin and Vienna
"C. P. Goerz was founded in 1886 by Carl Paul Goerz. Originally, it made mathematical tools for schools. From 1888 it made cameras and lenses. During the First World War, Goerz's main production was for the German and Austrian military. Goerz is known primarily for Anschuetz strut-folding cameras, Dagor lenses and Tengor and Tenax cameras, later continued by Zeiss Ikon.