Hello, I'm a new member from northern NH. I just got this sword from a friend. It is a Ames officer artillery sword. The hilt is a type 1, makers mark is Ames, no date. I am having a hard time dating this sword, due to the type 1 hilt and Ames co chicoppee mass marking. I have 2 guesses, one is its a 1872 post war sword. The other guess is its a 1859-1860. Any help would be greatly appreciated.