I have a few 99’s I would trade.
I would get a letter from Cody to determine if it’s in original configuration. Would make a big difference in value
Does the barrel have the Winchester Definitive Proof stamp? Is so, it’s a replacement barrel as the W over P Proof stamp was first used in 1906.
I Absolutely agree and like, all the above comments! Trading would benefit both parties in my opinion, but maybe not enhance your pocketbook, to help replace the funds that you've spent on your 99's! So for arguments sake, Condition! Condition! Condition! It's not rare! It's not a High Condition Rifle! A good Honest shooter! It's a standard 73, with a possible replaced Barrel! We aren't really sure of the Bore condition! The wood Butt stock and Forearm, are honest, and do look original, which is good, but many normal dings, mars, and marks, yet not refinished! The receiver is silvered in a pleasant tone, the bluing on the magazine tube is a brown patina, the fore end cap is minus it's blued finish, and starting to turn to a patina, that doesn't really match the magazine tube. The crescent butt's finish is also void, matching the fore end cap. It is possible that the Barrel was replaced with a later Nickel Steel Barrel, which the Letter will state, as will a work up sheet from the Museum records, but if your gonna sell it, why put more $ into it, that won't that you won't re coup! I don't see where a Factory Letter from Cody will get you more $ !!! It is what it is! A good Honest Winchester 1873, MFG. in 1884!