There is no crown over the very small RC. I will photograph it and post

1913 DWM Luger
 

Here is the photo of the (very small) RC on the trigger guard. I put chalk on the letters to make them show up.Attachment 24659

Attachment 24660

Another RC stamp on a 1913 DWM. The trigger guard is round and that seems to be the reason that the RC stamp is only seen partially.

Also on the bottom of the magazine, are all 4 numbers and suffix letter present, or just the last 2 digits? A photo or 3 might help here.
dju

Just the last two numbers of the serial number are present on the magazine bottom.

1913 DWM Luger
 

I was very much mistaken in my identification of the stamp on the bottom of the Magazine! See attached photos.
1. small RC on trigger guard
2. Full serial# and letter b on magazineAttachment 24666

Attachment 24667

OK thanks, it looks good.
dju

zman, To be matching your mag should have the full 4 digits + suffix serial on the bottom. TH