• When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.


This topic is now archived and is closed to further replies.

"thumped over"

3 posts in this topic

Was perusing the board across the street....one of their "no certification" criteria was under altered surfaces...."thumped over"...something about a coin being hit with a "pasty substance". Do you use that terminology/criteria, and what does it look like ???

Link to comment
Share on other sites

  • Member



The term you are actually referring to is "thumbed over". It is a loose term that indicates a coin that has been coated over with a foreign substance. Typically, you will find the term used on Morgan Dollars that will have contact marks on the face. The "thumbing" process seeks to dull down the contact marks or disguise them by applying a milky substance over them. This "thumbing" is intended to mimic the luster of the device in an effort to make the coin appear better than it truly is. The more common term used here at NGC is "Altered Surfaces".


Rick Montgomery

Link to comment
Share on other sites