That one should only be used under great caution it's pretty aggressive, baking soda and aluminum foil are less problematic.
This is a remarkable thread. It's not open ended like "post your favorite..." "post your newest..." And it goes on for 50 pages, so far. I always thought coin cleaning as a hot button topic that burned out after a few days like threads on grading seem to do. Grading threads start fast and furious but then it's as if everyone just stops, press the bulging head veins back into place and leave the thread. Why didn't that happen with thread? Is coin cleaning becoming more acceptable to coin collectors?
Whenever a hundred+ year old coin is posted and is blast white, I know immediately "that coin is cleaned"! The likelihood for this not being the case should be astronomically low.
I Just Know That Buyers Approve. I only know that I've never had a buyer complain when they purchase a large quantity of "Mercury dimes" in transparent $10 face amount pouches, purchased at less than melt, and see a properly "conserved" coin. Generally, they are ecstatic upon receiving included AU (A.N.A. technical grade) condition lustrous coins with complete sharp detailed vertical, diagonal, and band lines, having at least one split. They often return for additional coins. I've had more than one appreciative comment, especially when they're shown a lack-luster TPG graded coin without sharp complete definition, market graded "mint state": http://www.ebay.com/itm/1942-D-NGC-MS-61-MERCURY-DIMES-10C-CE230-/140851426254?forcev4exp=true&forceRpt=true#ht_2795wt_902 I believe desirability is in the eye of the beholder/purchaser, regardless of who/how current condition was retained/obtained. :thumb:
Everyone, at one time or another, has had or has seen a coin or coins that they think "What a nice coin, how unfortunate it has crappy toning/those spots/that goo/etc. Without it the coin would be outstanding" Whether or not we follow through with the cleaning is another matter. If I were to tell you (enter fantasy-land) that I could clean coins and improve their appearance in a manner that would pass even the most stringent inspection by even the most stringent TPG, would you be interested. First of all, No, I can't do that (wish I could) but most of us wish that some such thing existed. Lets face it, we all love coins or we wouldn't be writing here, and if we could improve them without dammaging them, we would. Wow I feel much better after that rant.
Would you dip your wife in a pool of POOL OF ACID BECAUSE YOU LOVE HER AND WANT TO IMPROVE ON HER LOOKS?
That's true, a thick patina can be limiting to see finer details, lightened up it can indeed improve visual appearance. Also I'm still missing an answer from the "don't clean it fraction" how it's possible for so many old coins in their nice slabs being blast white and not cleaned, yet they're often over hundred years old!?
Yeah, where is the smiley face? Actually many women have acid treatments on their faces and also dermabrasion to improve their complection and looks. Works for them. Would you want your wife to put powdered mineral on her skin and petroleum products on her lips and eyelids to appear more attractive for you?