The claim that some Bicentennial quarters are valued at $71,000 each stems from specific factors that make certain versions of these coins exceptionally rare and valuable.
Mint Errors: Some Bicentennial quarters have minting errors such as off-center strikes, double strikes, or being overstruck on foreign coins.
Proof Coins: A limited number of Bicentennial quarters were struck in silver as part of special collector sets.
No Mint Mark Proofs: Some proof coins from the San Francisco Mint were mistakenly produced without the "S" mint mark, making them extremely rare and valuable to collectors
Exceptional Condition: Coins that are in mint condition, especially those with full drum lines visible on the reverse side, indicating a sharp strike, are more valuable.
Historical and Aesthetic Appeal: Some Bicentennial quarters have developed natural rainbow toning over time, enhancing their visual appeal and uniqueness.