I’ve pretty much given up on BW Lugers, and Lugers in general. Way too many counterfeits out there, and a lot of them are pretty good fakes. Way too expensive now too!
Unless I have a second pair of eyes on a Luger, I’m not moving on it. I have a ‘37 Luger that I feel very confident about. So, at least I have one anyway with a matching mag.
Sorry, I know that’s no help to your question on this other than to add my disgust with our collecting field of Lugers.