The '59 is too early for '76, but if you are doing late 1860s, it could be right. Get a Sharps 50-70 conversion and it would make a good display. One thing a lot of troopers did in the southwest was to take the skirts off '59s, which kept the horse cooler. Of course, that made the rawhide come off faster, since there were a bunch of open holes in it.