A Complete Guide To Cleaning and Preservation of Coins, page 9

MECHANICAL CLEANING OF COINS: Using a Toothpick

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Toothpick Coin Cleaning

Removing Dirt Off the Coin

Most of the Dirt is Gone, Natural Patina Preserved

Copper Coin Patina Preserved after Mechanical Cleaning

Now you need to clean the coin with a toothbrush and toothpaste under the running water. The next step is to examine the coin under a magnifying glass and look for any dirt remaining inside the lettering or in other small features of the coin's design.

Dirt Residue Inside Letters on Coin Design

Dirt Resedue

Additional application of a toothpick and then brushing would get the coin cleaning job done.

Bronze Coin Cleaned



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