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D Mintmark used to signify coins struck at the Dahlonega, Georgia branch Mint.
Dahlonega The branch Mint located in Dahlonega, Georgia that struck gold coins from 1838 until 1861 when it was seized by the Confederacy. The 1861-D gold dollars were struck after the Mint was seized, the mintage figure for this rare issue is not listed in Mint records and has been estimated at 1000 to 1,500 examples.
date The numerals on a coin representing the year in which it was struck. Restrikes are made in years subsequent to the one that appears on them. Also, slang for a more valuable issue within a series.
DCAM Short for Deep Cameo.
dealer Someone whos occupation is buying, selling, and trading numismatic material.
Deep Cameo The term applied to coins, usually Proofs and prooflike coins, that have deeply frosted devices and lettering that contrast with the fields - often called black and white cameos. Specifically applied to those 1950 and later Proofs that meet deep cameo standards (DCAM).
deep mirror prooflike Any coin that has deeply reflective mirror-like fields, the term especially applicable for Morgan dollars. Those Morgan dollars that meet PCGS standards are designated deep mirror prooflike (DMPL).
denomination The value assigned by a government to a specific coin.
denticles The tooth-like devices around the rim seen on many coins. Originally these are somewhat irregular, later much more uniform - the result of better preparatory and striking machinery.
dentils Short for denticles.
design A particular motif on a coin or other numismatic item. The Seated Liberty, Barber, Morgan, etc. are examples of designs.
design type A specific motif placed upon coinage which may be used for several denominations and subtypes, e.g., the Liberty Seated design type used for silver coins from half dimes through dollars and various subtypes therein.
designer The individual responsible for a particular motif used for a numismatic series.
device Any specific design element. Often refers to the principal design element, such as the head of Miss Liberty.
device punch A steel rod with a raised device on the end used to punch the element into a working die. This technique was used before hubbed dies became the norm.
die A steel rod that is engraved, punched, or hubbed with devices, lettering, the date, and other emblems.
die alignment Term to indicate the relative position of the obverse and reverse dies. When the dies are out of alignment, several things can happen: If the dies are out of parallel, weakness may be noted in a quadrant of the coin's obverse and the corresponding part of the reverse; and if the dies are spaced improperly, the resultant coins may have overall weakness; if the dies are spaced too close together, the resultant coin may be well struck but the dies wear more quickly.
die break An area of a coin that is the result of a broken die. This may be triangular or other geometric shape. Dies are made of steel and they crack from use and then, if not removed from service, eventually break. When the die totally breaks apart, the resultant break will result in a full, or retained, cud depending whether the broken piece falls from the die or not.
die crack A raised, irregular line on a coin, ranging from very fine to very large, some quite irregular. These result when a hairline break occurs in a die.
die line These are the raised lines on the coins that result from the polish lines on the die, which are incuse, resulting in the raised lines on the coins. See also die striations, polished die.
die rust Rust that has accumulated on a die that was not stored properly. Often such rust was polished away, so that only the deeply recessed parts of the die still exhibited it. A few examples are known of coins that were struck with extremely rusted dies the 1876-CC dime, for one.
die state A readily identified point in the life of a coinage die. Often dies clash and are polished, crack, break, etc., resulting in different stages of the die. These are called die states. Some coins have barely distinguishable die states, while others go through multiple distinctive ones.
die striations Raised lines on coins that were struck with polished dies. As more coins are struck with such dies, the striations become fainter until most disappear.
die trial A test striking of a particular die in a different metal.
die variety A coin that can be linked to a given set of dies because of characteristics possessed by those dies and mparted to the coin at the time it was struck. In the early years of U.S. coinage history, when dies were made by hand engraving or punching, each die was slightly different. The coins from these unique dies are die varieties and are collected in every denomination. By the 1840's, when dies were made by hubbing and therefore were more uniform, die varieties resulted mainly from variances in the size, shape, and positioning of the date and mintmark.
die wear Deterioration in a die caused by excessive use. This may evidence itself on coins produced with that die in a few indistinct letters or numerals or, in extreme cases, a loss of detail throughout the entire coin. Some coins, especially certain nickel issues, have a fuzzy, indistinct appearance even on Uncirculated examples.
dime The denomination, one tenth of a dollar, issued since 1796 by the United States.
ding Slang term for a small to medium size mark. See also rim ding.
dipped A term applied to a coin that has been placed in a commercial "dip" solution, a mild acid wash that removes the toning from most coins. Some dip solutions employ other chemicals, such as bases, to accomplish a similar result. The first few layers of metal are removed with every dip, so coins repeatedly dipped will lose luster, hence the term "overdipped".
dipping solution Any of the commercial "dips" available on the market, usually acid-based.
disme The original spelling of dime, the s silent and thought to have been pronounced to rhyme with steam. (This variation was used in Mint documents until the 1830s and was officially changed by the Coinage Act of 1837.)
D-Mint Term used for the gold coinage of the branch Mint in Dahlonega, Georgia.
DMPL Short for deep mirror prooflike.
doctored Term used for a numismatic item that has been enhanced by chemical or other means. Usually, this is used in a derogatory way.
dollar The denomination, consisting of one hundred cents, authorized by the Mint Act of 1792. This is the anglicized spelling of the European Thaler and was used because of the world-wide acceptance of the Thaler and the Spanish Milled dollar or piece-of-eight.
Double Eagle Literally two eagles, or twenty dollars. A twenty-dollar U.S. gold coin issued from 1850 through 1932. One gold double eagle dated 1849 is known and is part of the National Numismatic Collection at the Smithsonian Institution. Nearly half a million examples dated 1933 were struck by the U.S. Mint, but virtually all were melted when private gold ownership was outlawed that year. (Currently federal officials claim it is illegal to own any 1933-dated specimens that survive.)
double(d) die A die that has been struck more than once by a hub in misaligned positions, resulting in doubling of design elements. Before the introduction of hubbing, the individual elements of a coin's design were either engraved or punched into the die, so any doubling was limited to a specific element. With hubbed dies, multiple impressions are needed from the hub to make a single die with adequate detail. When shifting occurs in the alignment between the hub and the die, the die ends up with some of its features doubled then imparts this doubling to every coin it strikes. The coins struck from such dies are called doubled-die errors the most famous being the 1955 Doubled Die Lincoln cent. PCGS uses doubled die as the A die that has been struck more than once by a hub in misaligned positions, resulting in doubling of design elements. Before the introduction of hubbing, the individual elements of a coin's design were either engraved or punched into the die, so any doubling was limited to a specific element. With hubbed dies, multiple impressions are needed from the hub to make a A die that has been struck more than once by a hub in misaligned positions, resulting in doubling of design elements. Before the introduction of hubbing, the individual elements of a coin's design were either engraved or punched into the die, so any doubling was limited to a specific element. With hubbed dies, multiple impressions are needed from the hub to make a single die with adequate detail. When shifting occurs in the alignment between the hub and the die, the die ends up with some of its features doubled then imparts this doubling to every coin it strikes. The coins struck from such dies are called doubled-die errors the most famous being the 1955 Doubled Die Lincoln cent. PCGS uses doubled die as the designation.
Double(d)-Die Slang for the rare 1955 Doubled Die Lincoln Cent variety.
double-struck A condition that results when a coin is not ejected from the dies and is struck a second time. Such a coin is said to be double-struck. Triple-struck coins and other multiple strikings also are known. Proofs are usually double-struck on purpose in order to sharpen their details; this is sometimes visible under magnification.
DPG Short For Daily Price Guide, specifically the Coin Universe Daily Price Guide
Draped Bust The design attributed to Mint engraver Robert Scot that features Miss Liberty with a drape across her bust. Scot presumably copied the design after a portrait by Gilbert Stuart.
drift mark An area on a coin, often rather long, that has a discolored, streaky look. This is the result of impurities or foreign matter in the dies. One theory is that burnt wood was rolled into the strips from which the planchets were cut, resulting in these black streaks.
dull Term for a numismatic item that is lack luster. This may be the result of cleaning, oxidation, or other environmental conditions.
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