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<p>[QUOTE="Boss, post: 518524, member: 15110"]Forget the toothpick. Messed up seveal coins with this (low value). Rose thorn and mineral oil. Get the sharpest rose thorn use you can. This is not intuitive, but a dull surface will scratch the coin secondary to no control and more force needed to get the lifting effect (your essentially having to smash the toothpick into the coin). The rose thorn will not damage the coin if you don't use too much force. Mineral oil greatly reduces the friction. This degrades the rose thorn so you will have to use several of them. I feel very confident in this technique and have removed the mineral oil with acetone many times to be sure I have not scratched the coin. I actually really enjoy doing this and do it almost every night after work now. I wish I could be paid to do this as I find it very satisfing to see the before and after affect. I cracked out a 1911 S from an NGC holder with grime in all all the lettering and numbers. I will show some photos tomorrow before and after. Too tired right now.[/QUOTE]</p><p><br /></p>
[QUOTE="Boss, post: 518524, member: 15110"]Forget the toothpick. Messed up seveal coins with this (low value). Rose thorn and mineral oil. Get the sharpest rose thorn use you can. This is not intuitive, but a dull surface will scratch the coin secondary to no control and more force needed to get the lifting effect (your essentially having to smash the toothpick into the coin). The rose thorn will not damage the coin if you don't use too much force. Mineral oil greatly reduces the friction. This degrades the rose thorn so you will have to use several of them. I feel very confident in this technique and have removed the mineral oil with acetone many times to be sure I have not scratched the coin. I actually really enjoy doing this and do it almost every night after work now. I wish I could be paid to do this as I find it very satisfing to see the before and after affect. I cracked out a 1911 S from an NGC holder with grime in all all the lettering and numbers. I will show some photos tomorrow before and after. Too tired right now.[/QUOTE]
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