If you can see the old gloss bluing and it has no choke markings and has a rem choke it is a 95 barrel not 85 receiver doesn't mean anything the way 870 barrels are switchedThe choke is screwed all the way in so I cannot see any notches.
The date code on the barrel is not clear but I believe it to be "XF". On the chamber side the barrel was not painted green as the whole gun wast painted with the barrel attached, so I can clearly see the blueing (found on Wingmasters).
No stampings on the barrel indicating choke and the choke has 4 notches on the end so I assume it's a standard Remchoke, also the person this barrel came from showed me the Wingmaster that it was mounted to, the first digit of the serial number on the receiver was "W" indication date from 1984 to 1989.
No such thing as a rem choke in a factory 85 and all 85 were stamped with their fixed chokes
So it is a good core for a high gloss reblue but IMO to get it right the cost will be close to a new barrel like I said I paid 300 some years ago to get a 28ga flight king high country pump barrel done since no chance of finding another and if wingmaster I would have bought a new barrel