It's a deep rabbit hole and it's complicated, but low values have sort of prevented forgeries of common coins. It would cost more to create a fake one than buy a real one. This site has a ton of https://www.forumancientcoins.com/:
Sweet! Thank you for the tip and the valuable insight!
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You're right, btw, about the expensive stuff. It's really a two tiered collecting culture. Obviously you're a knowledgeable coin collector. Do you know how cleaning a coin destroys value? With ancients, practically all have been cleaned, so it's not a taboo.
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I never even thought about that! That makes so much sense now that you mention it!
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