Hi David,
I was replying to another David that posted before you (pistol with serial number 11.00.1821).
I guess you understand how manage the Mauser serial number. It is enought keeping in mind that the first pistol is number 1001.
For the .30 luger the first pistol is numbered 10.001001 for the 9mm 11.001001. Therefore 10 codifies the .30luger pistol and 11 the 9mm.
Have fun
Mauro
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