The coin shortage was more a disruption in the circulation of coins.
What are some valuable 'fake' US coin types out there? For example, double-headed eagles. How much would they be worth to someone who collects them? - Quora
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Can You Spare A Quarter?
People have been making up to $100,000 or more off this unusual hobby
How often do people find rare or expensive coins in their change? - Quora
Want to Cash In Your Coins? Your Bank May Be the Best Place