Collectible coins, such as the 1940 San Francisco quarter, are of interest to numismatists for their historical significance, rarity, and potential for appreciation in value. The United States quarter, specifically the 25-cent piece, has gone through various designs and minting locations, with the San Francisco mint producing coins with the "S" mint mark. Collectors often seek out rolls of quarters for their potential rarity and to complete specific sets, especially for coins minted during pivotal years or with low mintage figures. Quarters from 1940 are particularly notable as they were part of the Washington quarter series, and those from San Francisco are sought after for their potential numismatic value.

Item Denomination Series Year Mint
1940-S 25c Roll 40 Coins 25c Roll Quarters 1940 San Francisco