I have a 1861 navy cutlass that I'm pretty sure is a replica the only thing is that when I look at replicas mine doesn't have those type of markings nor does it have the correct markings for me to believe it's authentic it looks period correct but that's easy to fake I'm thinking it's a very old replica the only markings on it are on the blade there's a C S a Anchor and date of 1861 lightly engraved the S and 8 are barely readable does anyone have a clue.