Hi, this morning I bought a Zeiss-Ikon Nettar 515 at a local flea market. It still had a film inside. Now I'm curious and want to develop the film to see what pictures (if any) are on it. Does anyone recognize this film and can give some development time number? Advancing the film (it was already at the 2nd last frame) gave a feeling like it had been sitting in the camera for the last 30 years, if not longer. So it's probably expired since a very log time.