Coin collecting is the collecting of coins or other forms of minted legal tender. Coins of interest to collectors include beautiful, rare, and historically significant pieces. Collectors may be interested, for example, in complete sets of a particular design or denomination, coins that were in circulation for only a brief time, or coins with errors. Coin collecting can be differentiated from numismatics, in that the latter is the systematic study of currency as a whole, though the two disciplines are closely interlinked.
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 tenge is the currency of Kazakhstan. It is divided into 100 tiyn.
The as, occasionally assarius, was a bronze, and later copper, coin used during the Roman Republic and Roman Empire.
The sestertius, or sesterce, was an ancient Roman coin. During the Roman Republic it was a small, silver coin issued only on rare occasions. During the Roman Empire it was a large brass coin.
The dupondius was a brass coin used during the Roman Republic and Roman Empire valued at 2 asses.
Roman currency for most of Roman history consisted of gold, silver, bronze, orichalcum and copper coinage. From its introduction during the Republic, in the third century BC, through Imperial times, Roman currency saw many changes in form, denomination, and composition. A persistent feature was the inflationary debasement and replacement of coins over the centuries. Notable examples of this followed the reforms of Diocletian. This trend continued with Byzantine currency.
The semis, literally meaning half, was a small Roman bronze coin that was valued at half an as. During the Roman Republic, the semis was distinguished by an 'S' or 6 dots. Some of the coins featured a bust of Saturn on the obverse, and the prow of a ship on the reverse.
The bes was an Ancient Roman bronze coin produced during the Roman Republic. Valued at two thirds of an as, it was only produced in 126 BC by C. Cassius in combination with the dodrans, another very rare denomination which was valued at three quarters of an as. The obverse head displayed the god Liber facing to the right.
The semuncia was an ancient Roman bronze coin valued at one twenty-fourth of an as, or half an uncia, produced during the Roman Republican era. It was made during the beginning of Roman cast bronze coinage as the lowest valued denomination.
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.
Coins of the Indian rupee (INR) were first minted in 1950. New coins have been produced annually since then and they make up a valuable aspect of the Indian currency system. Today, circulating coins exist in denominations of One Rupee, Two Rupees, Five Rupees, Ten Rupees and Twenty Rupees. All of these are produced by four mints located across India, in Kolkata, Mumbai, Hyderabad, Noida.
The ruble, rouble or rubel is the currency of Belarus. It is subdivided into 100 kopecks.
The Moroccan dirham is the official monetary currency of Morocco. It is issued by the Bank Al-Maghrib, the central bank of Morocco. One Moroccan dirham is subdivided into 100 santimat.
Slovenian euro coins were first issued for circulation on 1 January 2007 and a unique feature is designed for each coin. The design of approximately 230 million Slovenian euro coins was unveiled on 7 October 2005. The designers were Miljenko Licul, Maja Licul and Janez Boljka. The Mint of Finland was chosen to mint the coins through an international tender in 2007.
Cypriot euro coins feature three separate designs for the three series of coins. Cyprus has been a member of the European Union since 1 May 2004, and is a member of the Economic and Monetary Union of the European Union. It has completed the third stage of the EMU and adopted the euro as its official currency on 1 January 2008.
The tremissis or tremis was a small solid gold coin of Late Antiquity. Its name, meaning "a third of a unit", formed by analogy with semissis, indicated its value relative to the solidus. It was introduced into Roman currency in the 380s by the Emperor Theodosius I and initially weighed 8 siliquae.
The coinage of Nabataea began under the reign of Aretas II, c. 110 – 96 BC but it was his heir Aretas III, who at the time was in control of land extending to Damascus. The silver coinage is based on the weight of the Roman Denarius or Greek Drachma, as the adjacent areas around Nabataea used the Greek weight system, it is presumed the coins are of this standard. The local name of the denominations are not known so the Latin denarius and Greek drachma equivalents are used interchangeably.
The dodrans or nonuncium was an Ancient Roman bronze coin produced during the Roman Republic.
The term tiền is used to refer to various currency-related concepts used in Vietnamese history. The name is a cognate with the Chinese qián (錢), a unit of weight called "mace" in English. It can refer to a unit of weight used in precious metal coinages as well as the number of cash coins in a string. The name was also used for different awards, both Chinese-style and Western-style awards given in Vietnam throughout different times of its history.
