The standard circulating coinage of the United Kingdom, British Crown Dependencies and British Overseas Territories is denominated in pennies and pounds sterling, and ranges in value from one penny sterling to two pounds. Since decimalisation, on 15 February 1971, the pound has been divided into 100 pence. Before decimalisation, twelve pence made a shilling, and twenty shillings made a pound.
The krone, plural kroner, is the currency of the Kingdom of Norway. It was traditionally known as the Norwegian crown in English; however, this has fallen out of common usage. It is nominally subdivided into 100 øre, although the last coins denominated in øre were withdrawn in 2012.
The Philippine peso, also referred to by its Filipino name piso, is the official currency of the Philippines. It is subdivided into 100 sentimo, also called centavos.
The South Korean won is the official currency of South Korea. A single won is divided into 100 jeon, the monetary subunit. The jeon is no longer used for everyday transactions, and it appears only in foreign exchange rates. The currency is issued by the Bank of Korea, based in the capital city of Seoul.
A nickel is a five-cent coin struck by the United States Mint. Composed of cupronickel, the piece has been issued since 1866. Its diameter is 0.835 inches (21.21 mm) and its thickness is 0.077 inches (1.95 mm).
The history of coins stretches back to the first millennium BC/BCE. Notable examples of coins include the Lydian Lion coins, Persian daric and siglos, Tong Bei, the dirham and gold dinar.
A fourrée is a coin, most often a counterfeit, that is made from a base metal core that has been plated with a precious metal to look like its solid metal counterpart; the term is derived from the French for "stuffed". The term is normally applied to ancient silver-plated coins such as the Roman denarius and Greek drachma, but the term is also applied to other plated coins.
A debasement of coinage is the practice of lowering the intrinsic value of coins, especially when used in connection with commodity money, such as gold or silver coins, while continuing to circulate it at face value. A coin is said to be debased if the quantity of gold, silver, copper or nickel in the coin is reduced.
The Arab Emirates Dirham (; Arabic: درهم إماراتي, abbreviation: د.إ in Arabic, Dh and Dhs or DH in Latin; ISO code: AED is the official currency of the United Arab Emirates. The dirham is subdivided into 100 fils . It is pegged to the United States Dollar at a constant exchange rate of approximately 3.67 AED to 1 USD.
The fineness of a precious metal object represents the weight of fine metal therein, in proportion to the total weight which includes alloying base metals and any impurities. Alloy metals are added to increase hardness and durability of coins and jewelry, alter colors, decrease the cost per weight, or avoid the cost of high-purity refinement. For example, copper is added to the precious metal silver to make a more durable alloy for use in coins, housewares and jewelry. Coin silver, which was used for making silver coins in the past, contains 90% silver and 10% copper, by mass. Sterling silver contains 92.5% silver and 7.5% of other metals, usually copper, by mass.
A currency detector or currency validator is a device that determines whether notes or coins are genuine or counterfeit. These devices are used in a wide range of automated machines, such as retail kiosks, supermarket self checkout machines, arcade gaming machines, payphones, launderette washing machines, car park ticket machines, automatic fare collection machines, public transport ticket machines, and vending machines.
Aluminium bronze is a type of bronze in which aluminium is the main alloying metal added to copper, in contrast to standard bronze or brass. A variety of aluminium bronzes of differing compositions have found industrial use, with most ranging from 5% to 11% aluminium by weight, the remaining mass being copper; other alloying agents such as iron, nickel, manganese, and silicon are also sometimes added to aluminium bronzes.
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.
The Silver center cent is an American pattern coin produced by the United States Mint in 1792. As a precursor to the large cent it was one of the first coins of the United States and an early example of a bimetallic coin. Only 12 original examples are known to exist, of which one is located in the National Numismatic Collection at the Smithsonian Institution. Two more specimens exist but contain fabricated plugs added after minting.
A coin wrapper, sometimes known as a bank roll or roll, is a paper or plastic container for a number of coins. In the 19th century, coins were distributed in large cloth bags and coins were hand wrapped. Since the onset of the 20th century, coin wrapping machines have been in use. The earliest patent for a coin wrapping machine was in 1901. By 1910, automatic coin counting machines were in use, which could reject counterfeit coins, wrap coins, and crimp the coin wrapper ends.
The 500 yen coin is the largest denomination of Japanese yen coin issued for circulation. These coins were first struck in 1982 as the vending machine industry needed a higher valued coin for use in their machines. The denomination had previously been issued as paper currency which co-circulated with the new coins until 1994. Originally the 500 yen coin was made up of cupronickel, but was later changed to nickel brass, and then to bi-metallic to deter counterfeiting. This illegal practice has been a constant issue since the coin was first released due to its high purchase value. With a history spanning 3 imperial eras, 500 yen coins are also collectibles.
Coin counterfeiting of valuable antique coins is common; modern high-value coins are also counterfeited and circulated. Counterfeit antique coins are generally made to a very high standard so that they can deceive experts. This is not easy and many coins still stand out.
The Philippine one-peso coin (₱1) is the fourth-largest denomination coin of the Philippine peso.
A gold coin is a coin that is made mostly or entirely of gold. Most gold coins minted since 1800 are 90–92% gold (22‑karat), while most of today's gold bullion coins are pure gold, such as the Britannia, Canadian Maple Leaf, and American Buffalo. Alloyed gold coins, like the American Gold Eagle and South African Krugerrand, are typically 91.7% gold by weight, with the remainder being silver and copper.
Tự Đức Thông Bảo was an inscription used on different coins made from various metals and alloys during the reign of Emperor Tự Đức. The coinage of Tự Đức saw the introduction of the term văn (文) which was an accounting unit used for copper-alloy cash coins denominating their worth in number of zinc cash coins with a weight of 6 phần.
