Dan,
Anticipating the inevitable deluge of questions you'll get, you might take digital photos and post them to a free hosting service like photobucket.com.

That said, two places on the web where military Mauser rifle experts can be found at http://www.mausercentral.com/forum/index.php and http://forums.gunboards.com/forumdisplay.php?f=5

Paul,
Not necessarily, if the wartime Mausers are specially marked (Kriegsmarine, Luftwaffe, etc)