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US Coins
World Coins
Paper Money
Collecting 101
Coin Market
Community
Events
Coin of the Year
Archive
Marketplace
Pricing
Print

US Coins
World Coins
Paper Money
Collecting 101
Coin Market
Community
Events
Coin of the Year
Archive
Marketplace
Pricing
Print

friction

Contact marks added to the eagle’s breast to hide the friction wear.

Learning to recognize friction

By F. Michael Fazzari
Apr 26, 2019

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