1: Rare dimes and bicentennial quarters worth $1280 million in circulation.

2: History of rare dimes and bicentennial quarters.

3: Tips for identifying valuable coins in circulation.

4: Where to find rare dimes and bicentennial quarters.

5: Investing in rare coins for profit.

6: Top rare coin collecting websites.

7: The allure of rare coins for collectors.

8: Popular rare coin auctions and events.

9: Safely storing and preserving rare coins.