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<p>[QUOTE=&quot;Boss, post: 543077, member: 15110&quot;]<b>Fun post</b></p><p><br /></p><p><br /></p><p>&nbsp;</p><p>Tom- your a wild guy like me. Unfortunately you won&#039;t get far with this crowd. Look on my user page and search my posts on cleaning and similar topics. I have said many such things, not quite as direct, but similar. There is an interesting arguement about leaving oil on MS red copper that swayed me not to put on as the sulfur can react in time and blurr the cartwheel luster and dull the look of the coin. The chemist on this site appeared to have demonstrated that pretty well. I don&#039;t know what&#039;s in lighter fluid specifically, but I know it&#039;s not a commonly used substance even by the coin docs. I would stick with xylene (which smells awful, so use gloves and mask) and rinse with distilled water. I remove verdigris on AU or below coins with Verdigone, which I think I already mentioned so forgive me if I repeat myself. This product is excellent IMHO. Long acetone soaks will act like a weak acid and remove toning and you probably won&#039;t like the effect. It messed up a key coin of mine, as I stated earlier. I have scratched coins with a rose thorn, even recently despite my best efforts. They are small scratches on AU coins and will tone if left in a paper flip or exposed to air. Those coins still look better in my opinion as all the dirt/grime removed. It takes a lot of practice&nbsp; to master this technique. Less is more here and very light pressure. </p><p>&nbsp;&nbsp; &nbsp; </p><p>&nbsp;&nbsp; &nbsp; These are the things I know and have learned by reading everything I could. I have used Blue Ribbon, and Coin Care. Some say these leave films after a period of time if not removed. I did experience that with Coin Care. Time will tell for me. All coins have natural oils in them, especially circulated ones. Take an EF coin and soak it a long time in acetone. The scratches will start to appear that you could not see even with a 20 power loope. Those natural oil fill in the ridges. This is why I don&#039;t believe mineral oil, in particular will harm AU coins and below. However, a certain amount of my coins with such scratches I have acetoned and then distilled water and then put in album or in paper flip to let the toning fill in the scratches and nicks from normal wear. </p><p>&nbsp;</p><p>&nbsp;&nbsp; &nbsp; A lot of people do some or many of the methods I am saying. Some do nothing, put in storage and end of story. A lot of people lie about what they do which is what your picking up on here and on many coins sites.&nbsp; Though I found if you can stomache the insults on NGC boards they are much keener to this subject in my opinion. Many great threads there, though I don&#039;t post a lot due to the crazy insults that get thrown around. The moderators are good about that on this site I believe. This subject has been debated many times, but you are persistant and will find your own way. I will say I started off too aggressive and have backed off a lot, so it never hurts to wait and be sure you want to touch a coin you like or that&#039;s nice. That said, verdigris is bad and if can be safely removed without harming the coin it is needed. Many times it won&#039;t grow if starved of oxygen and moisture. Oil does do this as well, as airtites, and slabs for the most part. Keep posting TOM. You&#039;ll always get an interesting debate on this subject. And Benjamin&#039;s points (BPH) are excellent as well. I agree. And yes GD is right: only gold can be pulled from the sea after 150 years and go into a PCGS slab via the work of NCS. There would be nothing left of copper.[/QUOTE]</p><p><br /></p>

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