Byron's site is a good one. Here's one on Draped Bust coins in general, which of course are slightly older than the Capped Bust halves you're...
Here's another. Alexander the Great lifetime stater from Abydos c. 328-323 BC (let's see if this works): [img]
Used to be, you should buy the book before you buy the coin. Now you don't have to. Save your money on coins. But read the Web site before you buy...
Here's a Web site that talks a bit about this: http://www.enchanted-treasures.com/cleaning/CleaningPage.htm. I don't have any experience myself...
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