This just keeps getting better and better. Do you have any history on this rifle? I wonder if it was his personal rifle or made for a family member. Definitely made for someone special not the ordinary 1850's rifle.
I came across a similarly designed target rifle a couple years ago that was not quite as ornately decorated, but
the condition was a bit rougher. I also wondered if this might be his personal rifle, but unless the owner finds
the documentation from his grandfather, we will never know. Of course we have his son's personal rifle
in the Library (swivel breech listed under Lincoln Shreckengost)