Found this blade at a show this pase weekend. I used to collect swords, American mostly, sold off all but a few. The blade is from a US cavalry Saber like the one below

This one is chrome plated and has no makers mark.
It's dated 1864 and it looks to me like the initials are J.C.W. which seems to be stamped over an "S". The "S" is part of "U.S." This one is chrome plated and has no makers mark. The initials are the government inspector. The maker should be the Ames sword company but it isn't stamped on the blade. It looks to me like it was never mounted.
The inscription should read
