The pound or pound-mass is a unit of mass used in both the British imperial and United States customary systems of measurement. Various definitions have been used; the most common today is the international avoirdupois pound, which is legally defined as exactly 0.45359237 kilograms, and which is divided into 16 avoirdupois ounces. The international standard symbol for the avoirdupois pound is lb; an alternative symbol is lbm, #, and ℔ or ″̶.
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 (new) pence. Before decimalisation, twelve pence made a shilling, and twenty shillings made a pound.
Troy weight is a system of units of mass that originated in 15th-century Kingdom of England and is primarily used in the precious metals industry. The troy weight units are the grain, the pennyweight, the troy ounce, and the troy pound. The troy grain is equal to the grain unit of the avoirdupois system, but the troy ounce is heavier than the avoirdupois ounce, and the troy pound is lighter than the avoirdupois pound. One troy ounce equals exactly 31.1034768 grams.
The sovereign is a British gold coin with a nominal value of one pound sterling (£1) and contains 0.2354 troy oz of pure gold. Struck since 1817, it was originally a circulating coin that was accepted in Britain and elsewhere in the world; it is now a bullion coin and is sometimes mounted in jewellery. In addition, circulation strikes and proof examples are often collected for their numismatic value. In most recent years, it has borne the design of Saint George and the Dragon on the reverse; the initials of the designer, Benedetto Pistrucci, are visible to the right of the date.
Legal tender is a form of money that courts of law are required to recognize as satisfactory payment for any monetary debt. Each jurisdiction determines what is legal tender, but essentially it is anything which when offered ("tendered") in payment of a debt extinguishes the debt. There is no obligation on the creditor to accept the tendered payment, but the act of tendering the payment in legal tender discharges the debt.
Sterling is the currency of the United Kingdom and nine of its associated territories. The pound is the main unit of sterling, and the word "pound" is also used to refer to the British currency generally, often qualified in international contexts as the British pound or the pound sterling.
The pound was the currency of the Republic of Ireland until 2002. Its ISO 4217 code was IEP, and the symbol was £ The Irish pound was replaced by the euro on 1 January 1999. Euro currency did not begin circulation until the beginning of 2002.
The Royal Mint is the United Kingdom's official maker of British coins. It is the oldest company in the United Kingdom and is currently located in Llantrisant, Wales, where it moved in 1968.
The eagle was a United States $10 gold coin issued by the United States Mint from 1795 to 1933.
Decimal Day in the United Kingdom and in Ireland was Monday 15 February 1971, the day on which each country decimalised its respective £sd currency of pounds, shillings, and pence.
Coinage Act is a stock short title used for legislation in the United Kingdom and the United States related to coinage.
The pound was the currency of Australia from 1910 until 14 February 1966, when it was replaced by the Australian dollar. Like other £sd currencies, it was subdivided into 20 shillings, each of 12 pence.
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.
In Canada, a penny is an out-of-production coin worth one cent, or 1⁄100 of a dollar. According to the Royal Canadian Mint, the official term for the coin is the one-cent piece, but in practice the terms penny and cent predominate. Penny was likely readily adopted because the previous coinage in Canada was the British monetary system, where Canada used British pounds, shillings, and pence as coinage alongside U.S. decimal coins and Spanish milled dollars.
From c. 1124 until 1709 the coinage of Scotland was unique, and minted locally. A wide variety of coins, such as the plack, bodle, bawbee, dollar and ryal were produced over that time. For trading purposes coins of Northumbria and various other places had been used before that time; and since 1709 those of the Kingdom of Great Britain, and then of the UK.
Metrication, or the conversion to a measurement system based on the International System of Units (SI), occurred in India in stages between 1955 and 1962. The metric system in weights and measures was adopted by the Indian Parliament in December 1956 with the Standards of Weights and Measures Act, which took effect beginning 1 October 1958. The Indian Coinage Act was passed in 1955 by the Government of India to introduce decimal coinage in the country. The new system of coins became legal tender in April 1957, where the rupee consists of 100 paise. For the next five years, both the old and new systems were legal. In April 1962, all other systems were banned. This process of metrication is called "big-bang" route, which is to simultaneously outlaw the use of pre-metric measurement, metricate, reissue all government publications and laws, and change the education systems to metric.
The Coinage Act 1870 is an Act of the Parliament of the United Kingdom. It stated the metric weights of British coins. For example, it defined the weight of the sovereign as 7.98805 grams. The Act was repealed by the Coinage Act 1971. The Act is retained for the Republic of Ireland by section 2 of, and Part 4 of Schedule 1 to, the Statute Law Revision Act 2007.
The Great Recoinage of 1816 was an attempt by the government of the United Kingdom of Great Britain and Ireland to re-stabilise its currency, the pound sterling, after the economic difficulties brought about by the French Revolutionary Wars and the Napoleonic Wars.
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.
Viking coinage was used during the Viking Age of northern Europe. Prior to the usage and minting of coins, the Viking economy was predominantly a bullion economy, where the weight and size of a particular metal is used as a method of evaluating value, as opposed to the value being determined by the specific type of coin. By the ninth century, the Viking raids brought them into contact with cultures well familiarised with the use of coins in economies of Europe, hence influencing the Vikings own production of coins.
