Caleb, it would be safe to say that your gun was built in 1884. I believe the serial numbers started at 10,000 in 1883. It would be a Quality F, the lowest priced hammer gun at $55.00. Still quite a bit of money back then.
As far as what it is worth, condition is everything. Also these guns are getting harder and harder to find in decent condition.
The best thing to do is look at auctions to get an idea of what theirs looks like compared to yours. Also don't go by the asking price, only what they sold for, as some of these guns have been on some of these auction sites for a long time.
Yours is what is called a 5 pin 2 screw bar action lock, meaning the mainspring is before the action. It will have the high hammers, Type 1 and will have at least 22 lines per inch checkering, which is a sign of good quality and workmanship. The barrels were of the best English Stub Twist on the Quality F.
Good luck and post some pictures of it.
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