[header] How to calculate the value of junk silver [title] Confirm that your junk silver coins have no numismatic value. [step] The majority of junk silver is valued almost exclusively by its silver content. However, rare coins accumulate additional value. 
Search online for the value of your coin by referencing the date and image on the coin. [substeps] In general, coins that pre-date the 1940s have some collectors' value.