It has been suggested that this rifle may have been made by Issac Berlin.
I am no way an expert on Issac Berlin but for what it is worth, last weekend at the KRA show there was displayed a rifle very similar in architecture with similar carving behind the barrel tang, carving similar in form rear of the cheek piece and the beavertail tails on the lock moulding had those little lopes at the end. The rifle had an engraved patchbox with a flower finial but not the typical Lancaster Daisy. As far as I could see the rifle was unsigned. The rifle was in the president's display witch featured rifles from western PA. Handling of the rifles was prohibited, and viewing a rifle on a rack has its limitations. I do not know who owns the rifle. The description said "Issac Berlin", and I would assume it was supposedly made by him after he left York county post American Revolution. I think he was awarded a land grant in western PA as a reward for his service in the Continental Army and may have produced some rifles while he was there.
Please, any one, correct me if I have misrepresented any facts regarding Berlins service or his movement to Western PA. I Have not researched this, only stating remembrances of past reading, witch in my case may not always be totally reliable.
The rifle will be photographed and a CD will be made available by the Kentucky Rifle Foundation.
BTW great show.