grease marks on a coin

Comments

• Insider2 Posts: 14,452 ✭✭✭✭✭

  February 12, 2018 8:49AM

  Photo, There are all types of grease marks. Do you mean struck thru grease?

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• Gazes Posts: 2,315 ✭✭✭✭✭

  February 12, 2018 9:39AM

  Maybe I need more of an education since I didn't realize there were different types of grease marks.

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• Insider2 Posts: 14,452 ✭✭✭✭✭

  February 12, 2018 9:54AM edited February 12, 2018 9:55AM

  LOL, we all need more education!

  A grease mark can be:

  1. A smear from a sticky finger from a candy bar, skin cream, or plain old skin oils.
  2. Left over residue we believe from the Mint. It appears as a clear greasy substance often seen next to the rime of Franklin 50c and Washington 25c coins.
  3. Greasy debris struck into the coin and still there.

  You may be referring to the depressions on a coin's surface (Grease mark?) where something that was between the die and the planchet fell off/was removed from the coin's surface leaving a "flaw-mark" where it was.

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• WoodenJefferson Posts: 6,491 ✭✭✭✭

  February 12, 2018 1:41PM

  "Struck through grease' (oils/lubricants) often make the devices mushy or non-existent which are error coins, a category that specializes in Mint made errors. The grading services often mention the error on the label, CAC does not specialize in minor errors as such, so you'd be sending them a coin of little value, especially if modern minimal error.

  Chat Board Lingo
  
  "Keep your malarkey filter in good operating order" -Walter Breen

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