Yataghan and markings - ID and comments, please

[longfellow]

Good evening,

While cleaning house at the folks, I ran across a wooden wall decoration that has been hanging there, in a corner, for years - and had 3 swords in it. I always thought they were merely decoration until I took it down to clean. Much to my surprise, the swords look real but, for the life of me, I can't find an example of any of the three.

This is the yataghan(?) and the markings on it. It is 35" long, has copper decorations and a copper band up one side and down the other (sorry I forgot the photo of that). And a guard - not used to seeing those on one.

Any help or comments or identification would be appreciated!