u/Better_War_4289

My uncle passed away last month after a long battle with cancer. While clearing out his attic, I found these two camera lenses. Can anyone tell me exactly what they are and what the reddish build-up inside one of them might be? Is there a market for these? The only thing I’ve found out so far is that they are from the GDR (East Germany).

My uncle passed away last month after a long battle with cancer. While clearing out his attic, I found these two camera lenses. Can anyone tell me exactly what they are and what the reddish build-up inside one of them might be? Is there a market for these? The only thing I’ve found out so far is that they are from the GDR (East Germany).