Die defect
Encyclopedia
A die defect is a unique and unintentional flaw in a coin die and is created through excessive use or polishing of the die. A die bearing such a defect is occasionally referred to as a defective die. Generally, and depending upon the magnitude of the defect, coins
that are produced from these dies are considered error coins
. Also, the term encompasses a wide variety of design errors that were engraved into the die originally and were slipped into circulation
before the incorrect design was discovered.
during the minting
process, cracks, causing a small gap in the die. If this damaged die cointinues to produce coins, the metal
will fill into the crack, thus revealing a raised line of metal in the finished coin. Specimens with more prominent die cracks can command a high premium and are valued greatly by some collectors. However, less obvious errors are quite common, especially in the 50 States Commemorative Quarter Program
, yielding a lower value.
A cud is a variation of a die defect in which the coin bears a raised portion of metal. Unlike a die crack, this unintentional "bump" in the coin is caused by a dent or gouge in the die, therefore allowing the coin to fill into the gap during the minting process. A very minuscule cud can look like a small chunk of metal that was somehow fused to the coin. Some numismatists disagree that these small disturbances, although produced in the same way as a cud, can qualify as one. A prominent cud looks like a blank section of a coin, usually toward the rim of the coin.
COinS
ContextObjects in Spans, commonly abbreviated COinS, is a method to embed bibliographic metadata in the HTML code of web pages. This allows bibliographic software to publish machine-readable bibliographic items and client reference management software to retrieve bibliographic metadata. The...
that are produced from these dies are considered error coins
Mint-made errors
Mint-made errors are errors in a coin made by the mint during the minting process. Mint error coins can be the result of deterioration of the minting equipment, accidents or malfunctions during the minting process, or intentional interventions by mint personnel...
. Also, the term encompasses a wide variety of design errors that were engraved into the die originally and were slipped into circulation
Circulation (currency)
The social system in which we live has usually developed to the stage for money to be used as the medium for the exchange of goods and services. Hence the money is an important aspect of the general social or macroeconomics system...
before the incorrect design was discovered.
Die crack
A die crack occurs when a die, after being subjected to immense pressurePressure
Pressure is the force per unit area applied in a direction perpendicular to the surface of an object. Gauge pressure is the pressure relative to the local atmospheric or ambient pressure.- Definition :...
during the minting
Mint (coin)
A mint is an industrial facility which manufactures coins for currency.The history of mints correlates closely with the history of coins. One difference is that the history of the mint is usually closely tied to the political situation of an era...
process, cracks, causing a small gap in the die. If this damaged die cointinues to produce coins, the metal
Coinage metals
The coinage metals comprise, at minimum, those metallic chemical elements which have historically been used as components in alloys used to mint coins. The term is not perfectly defined, however, since a number of metals have been used to make "demonstration coins" which have never been used to...
will fill into the crack, thus revealing a raised line of metal in the finished coin. Specimens with more prominent die cracks can command a high premium and are valued greatly by some collectors. However, less obvious errors are quite common, especially in the 50 States Commemorative Quarter Program
50 State Quarters
The 50 State Quarters program is the release of a series of circulating commemorative coins by the United States Mint. Between 1999 and 2008, it featured each of the 50 U.S. states on unique designs for the reverse of the quarter....
, yielding a lower value.
Cud
- This section is about a lump of metalMetalA metal , is an element, compound, or alloy that is a good conductor of both electricity and heat. Metals are usually malleable and shiny, that is they reflect most of incident light...
on a coinCoinA coin is a piece of hard material that is standardized in weight, is produced in large quantities in order to facilitate trade, and primarily can be used as a legal tender token for commerce in the designated country, region, or territory....
caused by a defective die. For other uses, see Cud (disambiguation)Cud (disambiguation)Cud is the portion of food regurgitated by a ruminant.Cud or CUD may also refer to:* Cud, a lump of metal on a coin caused by a die defect* Cud , an indie rock band formed in Leeds, England in 1987* Cannabis use disorders...
.
A cud is a variation of a die defect in which the coin bears a raised portion of metal. Unlike a die crack, this unintentional "bump" in the coin is caused by a dent or gouge in the die, therefore allowing the coin to fill into the gap during the minting process. A very minuscule cud can look like a small chunk of metal that was somehow fused to the coin. Some numismatists disagree that these small disturbances, although produced in the same way as a cud, can qualify as one. A prominent cud looks like a blank section of a coin, usually toward the rim of the coin.