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Division V: After Strike Modifications
error coinsBy Alan Herbert
March 23, 2010
error coins


This division includes both modifi cations that have value to collectors – and those that don’t. I needed a couple of divisions to cover other things that happen to coins to aid in cataloging them. This avoids the false conclusion that an unlisted coin is quite rare, when the exact opposite is more likely to be the case.

 


Collectible modifi cations after strike (V-A)


This section includes those classes having to do with deliberate modifi cations of the coin done with a specifi c purpose or intent which makes them of some value to collectors. Quite often these pieces were made specifi cally to sell to collectors, or at least to the public under the guise of being collectible.



V-A-1 Screw Thaler, Rarity Level: 5-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Values: Normal Numismatic Value

V-A-2 Love Token, Rarity Level: 3-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Values: $10 up

V-A-3 Satirical or Primitive Engraving, Rarity Level: 6-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Values: $5 up

V-A-4 Elongated Coin, Rarity Level: 2-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Values: 50 cents to $1 and up

V-A-5 Coin Jewelry, Rarity Level: 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Values: $1 up

V-A-6 Novelty Coin, Rarity Level: 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Values: No Value up to $5 to $10

V-A-7 Toning, Rarity Level: 3-6. . . . . . . . . . . . . . . . Values: No value up, depending on coloration. Easily faked

V-A-8 Mint Modifi cation, Rarity Level: 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Values: $5 up. Easily faked

V-A-9 Mint Packaging Mistake, Rarity Level: 5-7 . . . . . . . . . . . . . . . . . . . Values: Nominal $1. Very easily faked

 

 

Alterations and damage after the strike (V-B)


This section includes those changes in a coin which have no collector value. In most cases their effect on the coin is to reduce or entirely eliminate any collector value - and in the case of counterfeits they are actually illegal to even own.


V -B-1 Machine Doubling Damage: NOTE: Machine doubling damage is defi ned as: “Damage to a coin after

the strike, due to die bounce or chatter or die displacement, showing on the struck coin as scrapes on

the sides of the design elements, with portions of the coin metal in the relief elements either displaced

sideways or downward, depending on the direction of movement of the loose die.” Machine doubling

damage, or MDD, is by far the most common form of doubling found on almost any coin in the world.



Rarity Level: 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Values: Reduces the coin’s value

V-B-2 Accidental or Deliberate Damage, Rarity Level: 0 . . . . . . . . . . . . . . . . . . Values: Reduces the coin’s value

V-B-3 Test Cut or Mark, Rarity Level: 0. . . . . . . . . . . . . . .Values: Reduces value of coin to face or bullion value

V-B-4 Alteration, Rarity Level: 0 . . . . . . . . . . . . . . . . . . . . . . . . . .Values: Reduces value to face or bullion value

V-B-5 Whizzing, Rarity Level: 0. . . . . . Values: Reduces value sharply and may reduce it to face or bullion value

V-B-6 Counterfeit, Copy, Facsimile, Forgery or Fake, Rarity Level: 0 . . Values: No Value and may be illegal to own

V-B-7 Planchet Deterioration. Very common on copper-plated zinc cents. Rarity level: 0 . . . . .Values: No Value

 

 


More Resources:

• Subscribe to our Coin Price Guide, buy Coin BooksCoin Folders and join the NumisMaster VIP Program

2010 U.S. Coin Digest, The Complete Guide to Current Market Values, 8th ed.

State Quarters Deluxe Folder By Warmans

Standard Guide to Small-Size U.S. Paper Money, 1928 to Date

Strike It Rich with Pocket Change, 2nd Edition

 

 



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