Has anyone seen these markings before? Done by the maker or by an owner?
Got a 3rd model 44 a while back shipped to W&K in October, 1932. It came to me with these pearls. However, some enterprising previous owner had epoxied the grip screw in place... reason unknown. My son was able to drill out the head of the grip screw so we could get the grips off.
They are the typical smooth MOP service stocks. The "AR" or "AB" appears on the inside of both panels. The "1928" appears on the right panel.
Any thoughts?