Help with CUD

[Whatacoin]

Hi everyone!

Ok so i was searching through my copper pennies when I found a 1971(D) penny which seems to have a retained cud under lincoln and id say the coin is EF in grade.. Sorry I cant take a picture (still cant figure out how to) but does anyone know anything about this or what its value is??

Thanks

 

[Rakattack]

Maybe a dollar but I'd doubt any dealer is willing to buy it. They're common.

 

[Whatacoin]

Eh maybe but their still fun to find