Ahhh, a thing of beauty! And John Small learned his craft in Pennsylvania!
https://www.sofmag.com/the-grouseland-rifle-a-longrifle-by-john-small/
And this is what the Grouseland Rifle looks like in William Henry Harrison's home *Grouseland.*
But they're incorrect about only six known examples of Small rifles being known to still be in existance. There are seven, and possibly eight.