I have ancient roman coins from AD and BC. I need to know the proper way to clean them with out ruining them?? O yea and they are bronze but, they have a lot of build up on them.

I found this site a couple weeks ago when I discovered a roman coin in my attic. Hope it helps.

Ancient Coin Cleaning And Restoration: Cleaning Ancient Coins Using Various Methods

I thought you don't clean them...

Ultra sonic cleaners work fairly well.

Quote:

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Originally Posted by Xrayman

I thought you don't clean them...

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Sometimes you don't clean them, but when the dirt and rust is so much that you can't see the details of the coin you need to clean it.