I joined here after following this forum a while. I own an 1840s percussion rifle that i am wondering if it is of value worthy of sending to an auction house. The rifle has been off and on kept in useable condition. It has R.Holmes on both the barrel and the lock. The gun is described in a 1951 book,i can't recall the name of. The stock has several repairs and the barrel has (Remington cast steel) on the bottom side,it is half octagon and half round and very heavy.. I have shot the gun recently with patched balls around 40 caliber. The hammer screw is incorrect. I bought it years ago and was told that it was made in NY around 1840. Everything i have learned has led me to believe that this is correct. It obviously well used but shots well and looks presentable. It is the oldest gun i own. Any thoughts or information is appreciated.