Quick snapshot. I tried to get raking sunlight across it to show details a little better. You can see it once had a shiny finish. This came to us in a plain white envelope that had come completely unglued in the mail! Lucky save. Our military guy thinks it might have been struck from the dies used for a Waterloo medal issued in the 1840s, long after most of the veterans had died. I can find no examples of that medal on eBay, though. In fact, there are almost no coins or medals where the portrait is facing right. This looks like the portrait it's based on: http://www.ebay.co.uk/itm/Death-DUKE-OF-WELLINGTON-1852-large-Copper-Gilt-medal-by-PINCHES-/121757364329?hash=item1c594df069 and you can see it, too, is facing left. A little Saturday morning mystery.