I'd consider that model to be an early 19th Century Pennsylvanian or Kentucky Pistol, with Navy type of hardware on it.
I've owned a few of them and they are a pretty good gun and well made for the cost. Now I'm a little snobby about my guns and really enjoy my Steve Zihn .58 cal Flintlock, and my other well made custom guns. But, as you have found, they cost about 3-4 times as much!
Howdy, from Arizona, USA!
Where are you from?