P08 Luger serial # has three digits..not four
From what I've read, I should expect my P08 luger to have a serial # with four digits or four digits and a letter.
However, it has only three digits.
Do I have a problem here or just need additional resources to place this?
(s/42 with a good deal of its "strawing" and a unit inscription placing it with a Bavarian machine gun squad)