This is a nice Jamestown Rifle. It is too bad that the name on the barrel is no longer readable. There were up to 80 gunsmiths working in Jamestown at the same time, all using the same stock architecture and inlays. This makes it had to attribute to any one maker.
The silver side plate is unusual. I have seen it before on another rifle, but do not remember which maker used it. I would like to see the brass screws replaced, just does not look right to me.
Thanks for posting it.
Michael