Quote:There's really no such thing as "restoration" of any coin, unless it is ultimately rare, and by rare I mean less than 10 known. Anything else is whizzing, polishing, cleaning, dipping or foreign applied surface ... ALL meant to alter the appearance and, ultimately, deceive the potetial buyer. Most
TPG's now will not grade other than "authentic" for coins with waxes and other surface agents hiding the anomolies.
There are many ways to restore cleaned coins without permanently marring the surfaces. I often do this with ancient coinage, however, it's not the same with modern coinage I suppose.
will not straight grade a problem coin. The point of the restoration is to make the coin more acceptable to the eye. I had a 1872-H AU 25c that was cleaned lightly, I left it in a sulfur rich cardboard for a few months, came out with a wonderful even brown patina, and straight graded at ICCS as AU-55. The originally bright surfaces would have fared much worse, a cleaned designation or NET grade perhaps.