Collectible coins refer to numismatic items that are sought after by enthusiasts and investors due to their historical significance, rarity, or condition. The 50-cent roll of half dollars, particularly from the year 1936, includes coins minted in San Francisco, designated by the "S" mintmark. These coins can feature notable designs like the Walking Liberty or the Franklin half dollar, depending on the series. The value of these half dollars can vary widely based on factors such as minting quality, market demand, and overall preservation.

Item Denomination Series Year Mint
1936-S 50c Roll 20 Coins 50c Roll Half Dollars 1936 San Francisco