Expert: PAPAJACK - 9/25/2009

Question
I have a 1991 u.s. dime its flawless on the front, no missing numbers or letters. however the back  it only has a small portion stamped in the very center about 4 mm in diameter. i'm curious as to how much it may be worth.

Answer
Hello Justin,                        

Without seeing this coin it’s hard to say.

The blank could not be undersize in thickness or both sides would have the image off as you describe. But possibly it is a “Struck through grease error”.

These coins often exhibit weak or all together missing design elements due to one part of the die being clogged with a combination of grease and dirt.

There is usually an uneven surface where the design elements are weak. Since it is relatively easy to fake this error, only uncirculated coins are considered collectible. This is the most common of all errors.

But since the coin may have been squeezed or otherwise altered after it left the mint it must be looked at. This condition will not have a premium value added to it. As an oddity it may sell for a dollar or less.

If you want I can refer you to a dealer in your area who can look at the coin in person for more help. Just write back with the general location (nearest large cities) and some zip codes in your area, I can direct you to an AMERICAN NUMISMATIC ASSOCIATION MEMBER/DEALER near there. They are ethical and trustworthy.

Thank You and Good Luck

PapaJack