CoinArchives.com is probably good enough for your purposes; it's a database of prices realised at recent auctions. You'd have to pay $600/year for full database access, but the last six month's worth is free to access. Just type "Edward confessor" or "Henry III" into the search line and dozens of each will come up; coins of these kings come up in auctions frequently enough to acquire a good data set, even in the six month window.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis




















