What is a Reverse Wheel mark?

Sent a coin to NGC, and I saw on their website that one didnt grade due to a Reverse Wheel mark. Anyone know what this is?
The coin is a very NT 1964 kennedy half.
AJ
The coin is a very NT 1964 kennedy half.
AJ
All coins kept in bank vaults.
PCGS Registries
Box of 20
SeaEagleCoins: 11/14/54-4/5/12. Miss you Larry!
PCGS Registries
Box of 20
SeaEagleCoins: 11/14/54-4/5/12. Miss you Larry!
0
Comments
counting wheel damage on the Rev.?
Too many positive BST transactions with too many members to list.
New collectors, please educate yourself before spending money on coins; there are people who believe that using numismatic knowledge to rip the naïve is what this hobby is all about.
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
<< <i>Does anyone have a pic of a wheel mark? >>
Sounds like Ankur will shortly.
Click on this link to see my ebay listings.
Courtesy of Google image search.
The best way to see a wheel mark on a coin is with a halogen lamp.
A picture of Supertooth's coin from the post. Mark had a great picture to but its no longer there.
Neither Mark Feld or myself could see that area with just our eyes or with regular lighting. Even under a loupe it was NOT apparent. Only when Mark put it under the halogen light did it show up---and he then gratiously passed this information on to me.
As you can see, the coin is a wonderful "original skinned" MS Walker. The wheelmark finally put it into an ANACS holder. Bob [supertooth]