This seems to be a post Civil War period great coat, either way, this was a cool find on eBay and went for about $4000.00. It belonged to a member of the 7th New York State National Guard. If you look at several of the men wearing the great coat, you'll notice the sleeve cuffs are not like the style you see on this jacket. Also, note the lack of a button up cape. I added two photographs of men wearing the great coat at the end of this posting.