1: Rare bicentennial quarter worth nearly $400,000 USD discovered in circulation.

2: Factors that determine value of rare bicentennial quarters.

3: Top 8 rare bicentennial quarters worth over $30,000 each.

4: Tips for collecting and identifying valuable bicentennial quarters.

5: History and significance of bicentennial quarters in numismatics.

6: Where to buy and sell rare bicentennial quarters.

7: Investing in rare coins: Are bicentennial quarters a good choice?

8: Rare bicentennial quarter auctions and price trends.

9: Care and preservation of valuable bicentennial quarters.