I have recently been given a rifle and was wondering if anyone could tell me about it.

It was inherited and I don't know much about it.

It is a rolling block w/ Pat. dates May 30 Nov 15th 1864 April 17th 1866 Aug. 1867 Nov 7th 1871. It has a B on left side of trigger housing, an S on left of barrel and U on right. All 3 bands have B on right. Rear and mid band have H on left, front band has S. It has a rifled bore and 9 possition rear sight on rear of barrel (not on stock). Metal butt cap has an H on top and what appears to be a later larger I stamped in it. Butt stock has multiple intitial stamps in it (can't make them out) but al 3 are enclosed in a box shape. Thanks in advance.