You might be able to raise the date out of it by soaking the coin in vinegar for three weeks. I restored the date on a slick buffalo nickel this way, but it discolored the metal into a blue-ish color.
Sorting Map 2010 First Finds Contest Are you a Buffalo Hunter? Wanna take seignorage away from the Fed? Spend *any* coins! We cannot afford this government. Cerulean's Standing Offer: $3/lb shipped for foreign coins