check this
 

GunBroker.com Item #3266074

Looks funny?
 

Ok, not much into WWII Lugers, but IMHO the mag looks to have the remnants of a "Made in Germany" stamp just below the serial number. Also without looking at my guns isn't the lazy C/N proof on the breach block wrong? As for the "KL" or the right I don't know? Overall the finish looks a little rough under the blue. Almost like a light sandblast. I son't think that the Germans were exporting guns during the secret build up so maybe a capture rework?