Really hard to say from where we sit today, Paul. George's gun is a long way from new, right around 100 years, I'd guess, and from the looks of it, I'd say it has seen some modifications to keep it chugging along.
The 1909 catalog I have says that the gold inlay was a standard feature of a P gun. I really like the engraving on the detonators on George's gun, can't wait to see it cleaned up a bit.
Nothing about this gun says "off the rack" to me. It would have cost a lot of money when it was new.

Best,
Ted