I inherited this Luger which has a serial of 3762 located under the barrel with a script m below that. It does have made in Germany on the frame. It does have the n with the crown above it and the DWM marking. From what I understand so far is that it is a commercial luger and the caliber is the 7.65 from the rounds that were in the magazine. It does have the 62 marks on the smaller parts that I can see but have had the gun apart to see if the internal parts also match. There is a black leather case that has 6738 in white lettering on it as well and no marks on either clip. I have not attempted to clean the gun as is noticeable in the pictures. I can provide more pictures of any part that is helpful.
Thank you in advance.
Jay