Collectible coins encompass a wide range of types, including vintage and modern specimens from various countries. In the United States of America, these can include commemorative coins, silver dollars, gold coins, and various mint errors. Specific items like "Slugs" refer to a form of counterfeit or altered coins, often used in vending machines. Jankovsky coins may refer to specific pieces created or altered by an artist or coin modifier, with the 1927 designation indicating a year of minting. Collectors often prize rare or unknown variants for their historical significance and potential investment value.

Item Denomination Series Year Mint
1927-Dated Silver J-927, C.C. Julian Slug Ms Other / Varied Slugs - Jankovsky 1927 Unknown