unless it is out of a proof/mint set it is worth aprox. 25 cents. and even if it came strait out of proof set it will only be a dollar or two.
These wholesale at about $1.75 in unc. Most coins seen are from mint sets since rolls and even singles are most uncommon. Mint set coins tend to be unattractive so the value of any specimen can be highly dependent on its quality. Gems bring very substantial premiums though.