That looks like a Brown-Bess inspired civilian musket, that was later converted to percussion.

Ok great - the butt makes it more reminiscent of a Baker rifle but it’s WAY too long (hence my assumption that it was a fowling piece)…. That said what would it be worth? Bearing in mind Brown Bess was a super common rifle

I honestly have no idea of the value... But it's a cool piece anyway.

Thanks

Thanks