Ski i also agree with what you're saying and are possibly referring to the 1913 HC i had dipped. That was my first and only attempt, lets look at it this way. If you found an aging coin in the mud would you wash the mud off so you could see what it was? That was basically all i did with the HC, it was basically surface dirt on the coin that would'nt come out in "the wash" and made what was a good attempt at "restoring" it's beauty without completely destroying the coin, unlike several ebayers whos coins look like stones after dipping for what can only be described as trying to gain large profit from doing so, i was'nt, i paid a decent price for the HC and made about 40 quid after fees etc selling it. Cleaning for large profits is in my opinion worse than cleaning to bring back it's former glory, or "conserving" It's not a practise i do daily and not something i intend on continuing, i like lustre on coins and coins that have aged gracefuly Peck, feel free to correct my spelling errors, also ski'