New User: 1892 Parker Top Lever ID

[Michael Sullivan]

Hi everyone, appreciate the acceptance to this forum. I’m sure this happens quite a bit but I have a shotgun from my great great grandfather with the following details. Hoping someone can help me identify it. Would love to verify he’s the one that purchased it. Hopefully the pictures upload correctly.
Serial number:72730 (1892)
Frame size: 1
Weight: 3 ^13 - not exactly sure what this means
Steal: Damascus twist - judged by visible Damascus and says twist on the barrel
Grade: unmarked on water table. Must not be the same for top lever. If the pictures show, there’s a C and an A also engraved on the barrel, as well as a T circles which my guess is trademark or twist? From the research I’ve done my guess is C as the sheriff’s badge is silver and not gold but any help here would be greatly appreciated.
Thanks in advance!!