PB in Shield Mark
The PB in Shield mark on Parker Lifter 1953 is on the bottom of the locking lug next to the frame size 1. The rib on this barrel has the roll mark found on guns with s/n greater than 18? 20? thousand. This indicates the new barrel with the PB in shield stamp was put there some time later than production of guns with these numbers.
We did articles on numbering, and then other marks on Parker components in PP about 5 years ago. It may be time to review and up date this if input is available.
I think that one conclusion can be solidly made about Parker marks and stamps that are not visible when the gun is assembled. These marks were put there as part of quality control and inventory control; they conveyed no information to the eventual buyer.
Best, Austin
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