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w0nka posted:
It's not missing, it's just quite faint, and so this isn't going to be worth that much. It happens when a bit of debris gets caught in the die, and it's relatively common. It's not the same as a 'misprint' where the die was set up incorrectly.
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May 5, 2013 12:56
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I'm sorry if you already covered this, but what are the basic rules about patina and cleaning up a coin? Is it always best to leave it in whatever condition you find it in? My mom has some old copper coins with the green verdigris on them, and one some the features are slightly obscured by it.
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May 28, 2013 10:36
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Ron Don Volante posted:Nine times out of 10, you don't want to clean a coin as that will decrease its value. Most patinas are considered a natural result of the aging process and should be left untouched, as cleaning often causes more problems than it solves. But if you're just keeping the coins for yourself and aren't likely to resell them, there are a couple of gentle cleaning methods you can use on copper coins. One is soaking the coins in olive oil or distilled water (fresh water each day) for a period of days before gently rinsing it off. Another method is to stick the coin inside a potato overnight. Whatever's in the starch (I'm not strong with chemistry) will break down the grime. You may want to try a test coin first though, as the potato method can sometimes turn your coin black instead. Yeah, I've picked up a lot of coins over time but I don't have any desire to sell them. I mainly just want to see what's under that crud on my mom's coins.
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May 31, 2013 14:42
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