Dimes http://www.coinflation.com/coins/194...ime-Value.html $1.99 a gallon worth several times more Roosevelt dimes 1946-1964 Roosevelt Dime 1946 - 1964 Silver Roosevelt Dime Value $1.99 a gallon coinflation.com. $1.99 a gallon My 90% silver dimes have doubled in value. melt value. Coinflation Roosevelt Roosevelt dimes 1946-1964 Roosevelt Dimes 1946-1964 Roosevelt Dime $1.99 a gallon Dimes Silver