1941 Mauser Banner of Unknown Identity

[Gun-R-Us]

I recently got my hands a 1941 Banner Mauser P08 Luger. The question exactly what is it? All the numbers match, but it has a sear safety. I know that was typically found on Police models. But police models were usually all black, or at least the photo's I've seen were black looking. So is it a commercial model, or a police model taken from commercial to fill a contract? As the pics show you can see tooling marks on the frame, especially on the right side. I have one matching #2 magazine. The box is something the original "american" owner had built for it. The original owner that brought it back to the US said he obtained it in Austria.