Wow. Thanks for all of the input everyone! I should have taken a photo of the plastic bin that had about 100 painted coins in it. There were a few other individual coins on the shelf that someone had hand painted, and created a fancy typed card with the history of the coin. So painting doesn't add any value, and may damage the metal, but yet such coins are sold for an upcharge just for the colorization? That's messed up.
It just depends. Most modern painting and color doesn't add value. But older painting like those enameled coins do drive the value up.
And this is so true with enamelled coins....not so much here in the states. But in the UK as well as European countries they have a big following . I had a small collection years ago that I sold off. And must say never lost a cent on any of them! In fact saw some nice premiums on just about 2/3's of my collection . I had a matched pair of US $5 Indian gold pieces that were a set of cufflinks . They had 8 colors of enamel blended on them. a 2.5 dollar Indian that I kick myself daily for selling . Several crowns, and half crowns. And two love tokens that believe it or not scored me some big bucks. Like most collectors those whom collect Enamelled coins are extremely passionate on their specimens . I have seen crazy money paid for a coin that wouldn't be worth most days the spot price.
I thought he was King George slaying the dragon. Well you learn something new every day, thanks for the correction.
Yeah, it really is. The trouble with numismatics being such a subjective hobby is it allows for things like this to go unchallenged. "One man's trash is another man's treasure" and all. I've seen some otherwise-valuable Morgan varieties colorized like that, and it breaks my heart.