These are average circulated dimes, ranging from about good to about uncirculated, with a wide variety of varying mint marks and dates.

No lesser value Roosevelt's, just great collectible Mercury Dimes, one of America's most beautiful coinage designs.

Every one of these dimes is between 60 and 90 years old (They don’t make them anymore!). In fact there hasn’t been silver in the US dime since 1964.

These mercury dimes are 90% silver. 

Silver has been a very good investment as all commodities and metals have skyrocketed.  Fundamentally, there is no reason for this to change. Silver coins also make a wonderful gift for that person who thinks they already have everything.