By Jon Sullivan for PCGS …… When a coin is struck, it should be produced from dies that are clean and free of any residues, debris, or other random objects so that when the dies come together to strike the planchet, a perfect strike is the result. If, however, there is something between the dies […]
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By Jon Sullivan for PCGS …… The mint error type called a “double-denomination” is exactly what the name implies — two different denominations on the same coin. Such a coin will have the design of two (or more) different denominations of coins on it. A usually dramatic error type in appearance and popular with collectors, […]
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By Jon Sullivan for PCGS …… A very popular mint error type is the double-strike. It is dramatic in appearance and easily understood. Some of the most valuable mint errors are double-struck coins. Double-strikes are found on the earliest ancient coins all the way up to the modern-day coinage. Because of how coins are […]
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By Jon Sullivan for PCGS …… Perhaps the most well-known and popular mint error type is the off-center strike. The error is defined as a coin having part of the coin’s design struck off-center of the planchet. All off-center coins are missing some part of the design on at least one side of the coin, […]
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By Jon Sullivan for PCGS …… When we hear the word “mule” we usually think of the animal that is the offspring of a horse and a donkey. However, in the world of mint errors, it refers to a coin struck with dies that were not intended to be used in combination with each other. […]
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By Jon Sullivan for PCGS …… Although there are many valuable mint errors, among the loftiest of these are classified as “off-metal”. The most valuable mint error is a transitional off-metal 1943-D Lincoln Cent struck in copper, which was graded MS64BN by PCGS and sold for $1.7 million in 2010 to well-known collector Bob Simpson. […]
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Double Denomination & Dual Date By Mike Byers for Mint Error News …… This is the only known Proof Bicentennial quarter struck over a Roosevelt dime. In addition, it is a “dual date” since the dime is dated 1967, an amazing nine years apart! 1976 Proof Bicentennial quarters were struck at the San Francisco […]
The post Mike Byers Mint Error News – Unique Proof 1776-1976 S Bicentennial Quarter Overstruck on 1967 Roosevelt Dime appeared first on CoinWeek.
Unique Dual Mint Mark Discovery By Mike Byers for Mint Error News …… Upon closer examination of the understrike on the reverse of the quarter, Jon Sullivan of Sullivan Numismatics discovered and successfully matched up the “D” mint mark. The copper Lincoln cent was originally STRUCK IN DENVER prior to being overstruck by Proof […]
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