What is a 15 cent John Steinbeck stamp worth?

Answer 1

Fifteen cents each. You might pay a bit more if you ordered just one for your collection from a stamp dealer. Beginning in the 1950's, everybody and their relatives bought sheets of new stamps and put them away, thinking they'd be valuable. They aren't.

Answer 2

The 15 cent John Steinbeck stamp was issued in 1979. Its current value would depend on factors such as its condition, demand, and any errors or unique characteristics. Generally, used copies can be found for a few cents, while mint condition stamps may fetch a higher price among collectors.