What is the value of a 1964-S US nickel?

Several billion were made. This is a very common date with no added value in circulated condition. A nice uncirculated one may be worth about 25 cents. Billions of nickels were minted in 1964 as a stopgap effort to substitute for higher-denomination silver coins that were being removed from circulation for melting. They show up in circulation more than almost any other date.