Does anyone know a Civil War Buff that might have the regimental history of the 18th Penn. Vol. Cav., 163rd Reg. P.A. Vol's

?. The reprints are very expensive and I live down South. I have ser.#95790. It went through lots of serious times in "The War of Northern Aggression". I still shoot it occasionally. It functions fine with its original nipples and springs. No finish, understandably, they were used and rode hard. Amazingly accurate. I would like to ID it better. I can only find out that it was used in Farnsworth's charge under custer (can't capital that name south of the Mason Dixon Line). Thanks for the Off Topic , and by the way, half the family tree is from Philly P.A. Some even reenact IN BLUE!. Can you imagine?