How To Tell If Gold Coins Have Been Cleaned? Large Pictures

I think this has been a worthwhile topic and do appreciate everyones input. If a man/woman is really terrified of owning a "cleaned" coin I would suggest collecting something else as we all have owned them, sold them and still have them in our collections. In my opinion there are excellent cleaned coins and as metalman said, harshly cleaned or buffed coins that have been destroyed. When one turns to the old world coins that are hundreds of years old, getting a nice example, at a fair price, is for more important than worrying about who may have carefully dipped or removed some crud a hundred years ago. Guess we all should be thankful the individual was a collector and made the effort to keep those old classics as natural as possible without destroying it, shouldn't we? Thank you all for your opinions on this post and to all of you who won't collect cleaned coins there is always the modern mint and proof sets direct from the world mints! OH wait, the metal goes through a cleaning and dipping process at the mints (Philadelphia does a lousey job) so I guess there would be nothing left for you to collect as they have been cleaned and dipped as well?