It's hard to pick "favorite," but if I had to, it would be a Neill Fields flintlock .
The rifle was built by Neill Fields who built rifles at the Green River Rifle Works. It has an original Mortimer lock in it, with a 7/8x36", .50 cal, GRRRW barrel. Barrel has 8 lands and grooves.
The rifle is a small Beck style or early Lancaster, depending on who you ask and weighs in at 6.5 lbs.
Seems likethe gun was built around the lock. The original Mortimer English lock is 1810 or so. It features a waterproof style pan, rollered frizzen spring, and a stirrup linked tumbler and mainspring and very smooth internals. It sparks very well.
H.W. Mortimer on the lock plate: Harvey Walklate Mortimer (b.1753) was appointed Gunmaker Extraordinary to the Prince of Wales in 1811.
According to someone much more informed than me, the wood, the Rococo carving, and the sliding wood patchbox along with the curve on the buttstock are consistent with Rev War era rifles. All of which point towards an early Lancaster time period. The rounded back on the lockplate however is early 1800's style.
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