I wondered if anyone had an explanation or theory as to why this coin may have sold for such a high price (on the face of it?). http://www.ebay.co.uk/itm/Enamel-1804-George-III-Dollar-Five-Shilling-Coin-or-Crown-Bank-of-England-/190894025711?_trksid=p2047675.l2557&ssPageName=STRK%3AMEWAX%3AIT&nma=true&si=MA2hHJicuYE7HrSG8XId4l4UliM%253D&orig_cvip=true&rt=nc I acquired an extremely attractive and high quality enameled 1821 Crown as an example for my collection a few months ago for around £32, and watching them before and since they seem to all go for £20-£40, but this one has fetched over 10x the going rate, any ideas anyone?