Be careful. There are a lot of reproductions of this item. There were a few at the National, in fact. Though I believe the seller was representing them as repro, I'm not positive.
edited to add: I just reread your post. Are you sure this is original? I believe I've also see the image on a plate and a postcard. I always thought the larger border in the one above to be the same as the reproductions. The original wouldn't have had those. See cabinet sold in Heritage.
http://sports.ha.com/c/item.zx?saleN...lotIdNo=123013