I really do appreciate your responses, hopefully they´ll help in trying to get my money back.
The year I mentioned, 1931, was wrong, should probably be 1941, found the same faint marking on another holster on the net, see picture. The holster doesn´t smell anything but leather. I know it´s still a fake, just wanted to get the facts correct.
Edit: Forgot the image. As I said, this is another holster but the marking looks identical. Is this ome know mark that fakers use?