New holster AWM

[DavidJayUden]

I just got a 1915 DWM in a brown holster stamped "AWM" over a "3" over a "10" on the outside just beneath the flap cover. I saw the translation of the AWM, but what do the 3 and 10 represent?

And on the inside are inked letters: 7JR (the J could be a T), over LB over MCK (the C could be an 0 or even a G)

Any ideas what it all means?

Thanks!
DJU