Restoring old coins
January 18, 2008 4:45 PM Subscribe
I have a coin collection that has sat untouched for 50-60 years. At the time they were collected the coins were taken from circulation. They are from all over the world (no U.S. coins) and were minted in the early part of the last century. They were mounted on light cardboard pages with scotch tape. As you can imaging the tape has gotten quite brittle and sticky by now and may have interacted with the metal in the coins. I need advice on cleaning and restoring the coins in my collection. I understand that under normal conditions collectible old coins should not be cleaned.