That coin was not made by the US Goverment. It is just some private minting, but I don't know the history of that coin. Spot price (also called melt price) is the value of the silver in that coin based on today's market price for silver. If you went to a coin shop, pawn shop, etc. they would pay you a price based on that market price. The small premium Chris mentions is that you might be able to find someone that is interested in that coin for the coin itself (not just the silver). In that case, they would pay you spot price plus a little bit more. For example, today's silver price for that coin is about $40 (spot price). Someone might be willing to pay you $45 for it because they like the coin (i.e. $45 silver value plus a $5 premium for the coin design itself). That is just an example.