20 gauge rolling block information please

[Cole]

Passed on to me from my central-PA great, grandfather is a 20 gauge on which as pictured appears:

- faint Remington trade mark
- "653" on lower left tang
- "P" on the bottom of the 30 1/2" barrel, under the forearm that bears GGF's initials

The 13" stock appears to have been shorten and fits poorly but there is also a new replacement forearm and stock with a curved butt plate.

Although Remington made 16 and 20 gauges, I also see on You Tube that Model-1 50-70s rifles may have been with the NY militia were also rebored to 20 ga by Francis Bannerman.

Can you please tell me more about the likely age and history of this gun from my family tree? Also, if the new forearm and stock were put on for very infrequent shooting, how much care need be taken to remove any light, sparse rust to "shine it up", but not harm/damage the patina and brownish blueing?

RSA is an incredible resource! Thank you.

[Youldeld]

Passed on to me from my central-PA great, grandfather is a 20 gauge on which as pictured appears:

- faint Remington trade mark
- "653" on lower left tang
- "P" on the bottom of the 30 1/2" barrel, under the forearm that bears GGF's initials

The 13" stock appears to have been shorten and fits poorly but there is also a new replacement forearm and stock with a curved butt plate.

Although Remington made 16 and 20 gauges, I also see on You Tube that Model-1 50-70s rifles may have been with the NY militia were also rebored to 20 ga by Francis Bannerman.

Can you please tell me more about the likely age and history of this gun from my family tree? Also, if the new forearm and stock were put on for very infrequent shooting, how much care need be taken to remove any light, sparse rust to "shine it up", but not harm/damage the patina and brownish blueing block blast?

RSA is an incredible resource! Thank you.

Most likely an early 1900s Remington Model 10, not a Bannerman conversion of a Remington Rolling Block