Cutlass, US Navy, Officers, Civil War, Reproduction 1862
This one is a better made reproduction. The letters should have a "serif" and the numbers are of a form too modern for this sword. There is no rack number stamped on the brass guard.
This example was most likely made by The House of Swords (no longer in business). This company would use up any original parts (if they had access to them) which fooled many collectors into thinking they were the real deal.