1980s US quarter with no Mint Mark?

So I have a 1980s US quarter with a missing mint mark. There is just a smudge where the P, S, or D should be. Is it worth anything? Here are some pictures http://i49.tinypic.com/309q1p3.jpg http://i50.tinypic.com/2w3am1v.jpg http://i49.tinypic.com/otqo3m.jpg On some of the pics, there are two quarters. The... show more So I have a 1980s US quarter with a missing mint mark. There is just a smudge where the P, S, or D should be. Is it worth anything?

Here are some pictures
http://i49.tinypic.com/309q1p3.jpg
http://i50.tinypic.com/2w3am1v.jpg
http://i49.tinypic.com/otqo3m.jpg

On some of the pics, there are two quarters. The quarter on the right is my 1990s P US quarter.
2 answers 2