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What to do about white crud???
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<p>[QUOTE="jlblonde, post: 1417559, member: 32000"]I used a hard rubber dental pick on the rim. The hard white crud popped off and underneath was a bright tiny spot. I left no scratches. Under the microscope it appears to be the original patina. I also tried it on an Iranian coin from the 1970's that had the similar crud on it and it worked, that's when I tried it on the British penny.</p><p><br /></p><p>I don't think the crud is verdigris. I think it may be old hardened wax or a glue that was used to adhere it to some sort of souvenir a very long time ago when the coin was fairly new. Years ago, I had purchased a bag of coins from a dealer and several coins in the bag had this white hard crud on it. Maybe someone popped them out of their container/holders and discovered they weren't so pretty on the back.</p><p><br /></p><p>As far as the coin above is concerned, I remember it having a lot more crud on the reverse side, but I've never picked it off. I just noticed now that the holder has some crud shake on the bottom. </p><p><br /></p><p>I'm only concerned with this coin because it is sooo pretty and maybe worth something. Krause has it as $15 for XF and $60 for UNC Red.</p><p><br /></p><p>What grade does this coin appear to be? </p><p><br /></p><p>Just curious.<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie11" alt=":rolleyes:" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>
[QUOTE="jlblonde, post: 1417559, member: 32000"]I used a hard rubber dental pick on the rim. The hard white crud popped off and underneath was a bright tiny spot. I left no scratches. Under the microscope it appears to be the original patina. I also tried it on an Iranian coin from the 1970's that had the similar crud on it and it worked, that's when I tried it on the British penny. I don't think the crud is verdigris. I think it may be old hardened wax or a glue that was used to adhere it to some sort of souvenir a very long time ago when the coin was fairly new. Years ago, I had purchased a bag of coins from a dealer and several coins in the bag had this white hard crud on it. Maybe someone popped them out of their container/holders and discovered they weren't so pretty on the back. As far as the coin above is concerned, I remember it having a lot more crud on the reverse side, but I've never picked it off. I just noticed now that the holder has some crud shake on the bottom. I'm only concerned with this coin because it is sooo pretty and maybe worth something. Krause has it as $15 for XF and $60 for UNC Red. What grade does this coin appear to be? Just curious.:rolleyes:[/QUOTE]
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What to do about white crud???
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