Howdy from SE PA.

I just purchased a Parker hammerless damascus 10 ga in good shape. I want to use it to hunt geese. Before dropping it off by the local restoration shop today I recorded the following info: frame size = 2, barrel weight = 5-1 (the one is small and up from the 5 akin to an exponent), grade = 2 (GH right?), choked F/F.
The gunsmith says it's in great shape with plenty of original finish left. He will disassemble, clean and ensure it is properly operable and generally safe to shoot. Pls spare me the diatribe about shooting damascus barrels.
Heres the kicker - SN = 57404. Was this thing REALLY made in 1889 per the SN utility on the PGCA website??????

I intend to get a factory letter shortly.
Thanx, Dave