Collectible coins, particularly those issued by the United States, can vary significantly in value based on factors such as rarity, demand, and condition. The 25-cent coins, commonly known as quarters, produced in 1981 at the San Francisco Mint are often sought after by collectors, especially in uncirculated condition or in full roll sets. Quarters from this era may feature various designs, and specific mint marks can affect their desirability and market price. San Francisco quarters, particularly those with unique features or errors, can be particularly valuable in the numismatic market.

Item Denomination Series Year Mint
1981-S 25c Roll 40 Coins Type 1 25c Roll Quarters 1981 San Francisco