In numismatics, an overstrike describes a situation in which an existing coin rather than a blank is struck with a new design. This practice is now obsolete and generally occurred for two purposes. Overstriking was sometimes done for technical reasons when a first strike is unsatisfactory, or accidentally if the blank slips out of place or if the dies judder, resulting in a slight doubling of the design. However, sometimes old or worn coins were overstruck with new designs by later rulers or foreign states.
In the ancient world, use of overstrikes was not uncommon, since the manufacture of flans was resource consumptive; thus a foreign or outdated coin could be overstruck with less investment than new mintage.[1] Evidence of overstriking appears as early as about 500 BC when coins of Aegina were overstruck by the ancient city of Kydonia on Crete.[2] In this case and many others, the overstrike can be a valuable aid to dating an ancient coin, an era when dates were not commonly affixed to the design.[3]
Due to a shortage of silver coinage and bullion in late-18th century Great Britain, the Bank of England in 1804 issued Bank of England Dollars bearing the image and legend of king George III and valued at five shillings; these were produced by Soho Mint on their modern, steam-powered coining presses by overstriking Spanish silver dollars.[4][5]
Michael Crawford, Emilio Gabba, Fergus Millar and Anthony M. Snodgrass (1983) Sources for Ancient History, Cambridge University Press, 250 pages ISBN0-521-28958-0
C. Michael Hogan, Cydonia, Modern Antiquarian, Jan 23, 2008
Otto Mørkholm, Philip Grierson and Ulla Westermark (1991) Early Hellenistic Coinage, Cambridge University Press, 273 pages ISBN0-521-39504-6
A coin is a small object, usually round and flat, used primarily as a medium of exchange or legal tender. They are standardized in weight, and produced in large quantities at a mint in order to facilitate trade. They are most often issued by a government. Coins often have images, numerals, or text on them. The faces of coins or medals are sometimes called the obverse and the reverse, referring to the front and back sides, respectively. The obverse of a coin is commonly called heads, because it often depicts the head of a prominent person, and the reverse is known as tails.
The denarius was the standard Roman silver coin from its introduction in the Second Punic War c. 211 BC to the reign of Gordian III, when it was gradually replaced by the antoninianus. It continued to be minted in very small quantities, likely for ceremonial purposes, until and through the Tetrarchy (293–313).
The English penny, originally a coin of 1.3 to 1.5 grams pure silver, was introduced c. 785 by King Offa of Mercia. These coins were similar in size and weight to the continental deniers of the period and to the Anglo-Saxon sceats which had preceded it.
The double florin, or four-shilling piece, was a British coin produced by the Royal Mint between 1887 and 1890. One of the shortest-lived of all British coin denominations, it was struck in only four years. Its obverse, designed by Joseph Boehm and engraved by Leonard Charles Wyon, depicts Queen Victoria, whilst the reverse, featuring national symbols of the United Kingdom, was designed by Wyon based on the coinage of Charles II.
In numismatics, the term milled coinage is used to describe coins which are produced by some form of machine, rather than by manually hammering coin blanks between two dies or casting coins from dies.
The history of ancient Greek coinage can be divided into four periods: the Archaic, the Classical, the Hellenistic and the Roman. The Archaic period extends from the introduction of coinage to the Greek world during the 7th century BC until the Persian Wars in about 480 BC. The Classical period then began, and lasted until the conquests of Alexander the Great in about 330 BC, which began the Hellenistic period, extending until the Roman absorption of the Greek world in the 1st century BC. The Greek cities continued to produce their own coins for several more centuries under Roman rule. The coins produced during this period are called Roman provincial coins or Greek Imperial Coins.
A mint is an industrial facility which manufactures coins that can be used as currency.
Roman Republican currency is the coinage struck by the various magistrates of the Roman Republic, to be used as legal tender. In modern times, the abbreviation RRC, "Roman Republican Coinage" originally the name of a reference work on the topic by Michael H. Crawford, has come to be used as an identifying tag for coins assigned a number in that work, such as RRC 367.
This glossary of numismatics is a list of definitions of terms and concepts relevant to numismatics and coin collecting, as well as sub-fields and related disciplines, with concise explanations for the beginner or professional.
Irish coins have been issued by a variety of local and national authorities, the ancient provincial Kings and High Kings of Ireland, the Kingdom of Ireland (1541–1801), the United Kingdom of Great Britain and Ireland (1801–1922), the Irish Free State (1922–1937), and the present Republic of Ireland. Since 2002, the Republic of Ireland has minted Euro coins, featuring symbols such as flax and the harp.
The coinage of the Seleucid Empire is based on the coins of Alexander the Great, which in turn were based on Athenian coinage of the Attic weight. Many mints and different issues are defined, with mainly base and silver coinage being in abundance. A large concentration of mints existed in the Seleucid Syria, as the Mediterranean parts of the empire were more reliant on coinage in economic function.
The tetradrachm was a large silver coin that originated in Ancient Greece. It was nominally equivalent to four drachmae. Over time the tetradrachm effectively became the standard coin of the Antiquity, spreading well beyond the borders of the Greek World. As a result, tetradrachms were minted in vast quantities by various polities in many weight and fineness standards, though the Athens-derived Attic standard of about 17.2 grams was the most common.
Bar Kokhba Revolt coinage were coins issued by the Judaean rebel state, headed by Simon Bar Kokhba, during the Bar Kokhba revolt against the Roman Empire of 132–135 CE.
The Cheste hoard is an Iberian hoard discovered near the town of Cheste, Valencia, Spain, in 1864. Dating to about 200 BCE, the hoard was found buried in two pots and contained gold jewellery, silver coins and silver ingots. It is currently held in the Valencia History Museum.
Chop marks on coins are Chinese characters stamped or embossed onto coins by merchants in order to validate the weight, authenticity and silver content of the coin. Depending on particular technique coins said to have been "chopmarked", "countermarked" and "counterstamped".
Carthaginian or Punic currency refers to the coins of ancient Carthage, a Phoenician city-state located near present-day Tunis, Tunisia. Between the late fifth century BC and its destruction in 146 BC, Carthage produced a wide range of coinage in gold, electrum, silver, billon, and bronze. The base denomination was the shekel, probably pronounced in Punic. Only a minority of Carthaginian coinage was produced or used in North Africa. Instead, the majority derive from Carthage's holdings in Sardinia and western Sicily.
Coinage of the Ptolemaic kingdom was struck in Phoenician weight, also known as Ptolemaic weight. This standard, which was not used elsewhere in the Hellenistic world, was smaller than the dominant Attic weight. Consequentially, Ptolemaic coins are smaller than other Hellenistic coinage. In terms of art, the coins, which were made of silver, followed the example set by contemporary Greek currencies, with dynastic figures being typically portrayed. The Ptolemaic coin making process often resulted in a central depression, similar to what can be found on Seleucid coinage.
Bithynian coinage refers to coinage struck by the Kingdom of Bithynia that was situated on the coast of the Black Sea.
Ancient Rhodian coinage refers to the coinage struck by an independent Rhodian polity during Classical and Hellenistic eras. The Rhodians also controlled territory on neighbouring Caria that was known as Rhodian Peraia under the islanders' rule. However, many other eastern Mediterranean states and polities adopted the Rhodian (Chian) monetary standard following Rhodes. Coinage using the standard achieved a wide circulation in the region. Even the Ptolemaic Kingdom, a major Hellenistic state in the eastern Mediterranean, briefly adopted the Rhodian monetary standard.
Bouquet sou were a series of tokens that were created for use primarily within Lower Canada in the mid- to late-1830s. Roughly equivalent in value to a half penny, the "bouquet sou" were so called because they displayed a group of heraldic flowers tied together with a ribbon on their obverse. The group of flowers were encircled by one of several legends, which might say "Trade & Agriculture / Lower Canada", "Agriculture & Commerce / Bas Canada" or some variant of these that might also substitute the name of the issuing bank. The other side most typically gave the denomination of "un sou", surrounded by a wreath and the words "Bank Token" and "Montreal". There are a large variety of these tokens, distinguished primarily by the number and variety of flowers that appear in the "bouquet", along with the differences in the legends that appeared on either side of the token. They were initially issued by the banks of Lower Canada, and were later imitated by speculators who produced tokens that looked similar, but were underweight for their denomination. These coins also circulated to Upper Canada, as at least one archeology dig attests. Large numbers of these tokens were produced and many examples can easily be obtained for only a few Canadian dollars, though a few rare varieties can command significantly higher prices.
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