Minting Errors: Coins with errors, such as missing mint marks, double strikes, or off-center strikes, are often prized by collectors for their rarity and uniqueness.
Limited Editions: If the quarters were minted in limited quantities or as part of a special release, their scarcity can drive up their value.
Historical Significance: Coins associated with significant historical events, important figures, or rare variations can command premium prices due to their historical importance.
Condition: The condition of the coins plays a crucial role in determining their value. Coins in pristine condition are generally more desirable to collectors and can fetch higher prices.
Market Demand: The demand for rare coins among collectors and investors can fluctuate over time, influencing their market value.
Provenance: Coins with a well-documented history or that have been part of prestigious collections may carry additional value due to their provenance.