Thumbing

thumbing: applying a foreign substance to the surface of a coin with your thumb, usually to cover a flaw, hairline, or small defect.
token: a small coin with no stated value. These are usually made for commemorative or advertising purposes.

Thumbing
A method of attempting to hide surface flaws on a coin by using one's thumb to place a film of grease or wax on the surface of a coin.
Ticks
See BAGMARKS, HITS, CHATTER ...

thumbing
The rubbing of skin oil onto a coin in an attempt to hide contact marks.
token
A coin-like object redeemable for a particular product or service, such as bus rides, beer or video games.

Thumbing
An older method of hiding a surface disorder by using one's thumb to place a film on the surface of a coin.
Ticks
See BAGMARKS, HITS, CHATTER ...

Thumbing
The deceptive practice of attempting to hide an abrasion on a coin, by using the thumb to obtain a bit of skin oil from the corner of nose, and carefully rubbing it onto the affected area on the coin.

When Tonguing or Thumbing doesn't work, the coin is sent in to a professional Puttier to enhance its appearance. He applies either automobile bondo or (a later discovery) window glazing compound such as "33 Glazing" lightly to the affected area.

quarter but three times thicker thumbing The rubbing of skin oil onto a coin in an attempt to hide contact marks token - A coin-like object redeemable for a particular product or service, ...

When tonguing, fingering, or thumbing doesn't work, the coin is sent in to a professional puttier to enhance its appearance.

Taking the same body of data used to derive the Top 20 above, I started thumbing down the list. going down, down, and down some more. Finally, I came across the 1943 in MS-65 condition, on line 419.

See also: Dollar, Coin, Dealer, Grade, Numismatic