The guinea is a coin of approximately one quarter ounce of gold that was minted in the Kingdom of England and later in the Kingdom of Great Britain and the United Kingdom between 1663 and 1814. It was the first English machine-struck gold coin, originally worth one pound sterling, equal to twenty shillings, but rises in the price of gold relative to silver caused the value of the guinea to increase, at times to as high as thirty shillings. From 1717 to 1816, its value was officially fixed at twenty-one shillings. Then, Great Britain adopted the gold standard and guinea became a colloquial or specialised term.
The name came from the Guinea region in West Africa, where much of the gold used to make the coins originated. Although no longer circulated, the term guinea survives in some circles, notably horse racing, and in the sale of rams to mean an amount of one pound and one shilling (21 shillings) or one pound and five pence in decimalised currency. The name also forms the basis for the Arabic word for the Egyptian pound الجنيه el-Genēh / el-Geni, as a sum of 100 qirsh (one pound) was worth approximately 21 shillings at the end of the 19th century.
The first guinea was produced on 6 February 1663; a proclamation of 27 March 1663 made the coins legal currency. One troy pound of 11/12 fine gold (22 carat or 0.9167 pure by weight) would make 44½ guineas, each thus theoretically weighing 129.438 grains (or 8.385 grams).
The denomination was originally worth one pound, or twenty shillings, but an increase in the price of gold during the reign of King Charles II led to the market trading it at a premium. The price of gold continued to increase, especially in times of trouble, and by the 1680s, the coin was worth 22 shillings. Indeed, in his diary entries for 13 June 1667, Samuel Pepys records that the price was 24 to 25 shillings.
The diameter of the coin was 1 inch (just over 25 mm) throughout Charles II's reign, and the average gold purity (from an assay done in 1773 of samples of the coins produced during the preceding year) was 0.9100. "Guinea" was not an official name for the coin, but much of the gold used to produce the early coins came from Guinea in Africa.
The coin was produced each year between 1663 and 1684, with the elephant appearing on some coins each year from 1663 to 1665 and 1668, and the elephant and castle on some coins from 1674 onward. The elephant, with or without the castle, symbolises the Royal African Company (founded in 1660), whose activities on the Guinea Coast of Africa resulted in the importation of much gold into England.
The obverse and reverse of this coin were designed by John Roettier (1631–c.1700). The obverse showed a fine right-facing bust of the king wearing a laurel wreath (amended several times during the reign), surrounded by the legend CAROLVS II DEI GRATIA ("Charles II by the grace of God"), while the reverse showed four crowned cruciform shields bearing the arms of England, Scotland, France, and Ireland, between which were four sceptres, and in the centre were four interlinked "C"s, surrounded by the inscription MAG BR FRA ET HIB REX date ("Of Great Britain, France, and Ireland King"). The edge was milled to deter clipping or filing, and to distinguish it from the silver half-crown which had edge lettering. Until 1669 the milling was perpendicular to the edge, giving vertical grooves, while from 1670 the milling was diagonal to the edge.
John Roettier continued to design the dies for this denomination in the reign of King James II. In this reign, the coins weighed 8.5 g with a diameter of 25–26 mm, and were minted in all years between 1685 and 1688, with an average gold purity of 0.9094. Coins of each year were issued both with and without the elephant and castle mark. The king's head faces left in this reign, and is surrounded by the inscription IACOBUS II DEI GRATIA ("James II by the grace of God"), while the reverse is the same as in Charles II's reign except for omitting the interlinked "C"s in the centre of the coin. The edge of the coins are milled diagonally.
With the removal of James II in the Glorious Revolution of 1688, his daughter Mary, and her husband Prince William of Orange ruled jointly by agreement as co-monarchs. Their heads appear conjoined on the guinea piece in Roman style, with William's head uppermost, with the legend GVLIELMVS ET MARIA DEI GRATIA. In a departure from the previous reigns, the reverse featured a totally new design of a large crowned shield which bore the arms of England and France in the first and fourth quarters, of Scotland in the second quarter, and of Ireland in the third quarter, the whole ensemble having a small shield in the centre bearing the rampant lion of Nassau; the legend on the obverse read MAG BR FR ET HIB REX ET REGINA date (Of "Magna Britannia" Great Britain, "Francia" France and "Hibernia" Ireland King and Queen). By the early part of this reign the value of the guinea had increased to nearly thirty shillings. The guineas of this reign weighed 8.5 grams, were 25–26 mm in diameter, and were the work of James and Norbert Roettier and were produced in all years between 1689 and 1694 both with and without the elephant and castle; in 1692 and 1693 the mark of the elephant alone was also used.
Following the death of Queen Mary from smallpox in 1694, William continued to reign as William III. The guinea coin was produced in all years from 1695 to 1701, both with and without the elephant and castle, the design probably being the work of Johann Crocker, also known as John Croker, since James Roettier had died in 1698 and his brother Norbert had moved to France in 1695.
The coins of William III's reign weighed 8.4 g with an average gold purity of 0.9123. The diameter was 25–26 mm until 1700 and 26–27 mm in 1701. William's head faces right on his coins, with the legend GVLIELMVS III DEI GRATIA, while the reverse design of William and Mary's reign was judged to be unsuccessful, so the design reverted to that used by Charles II and James II, but with a small shield with the lion of Nassau in the centre, with the legend MAG BR FRA ET HIB REX date. The coin had a diagonal milled edge.
The reign of Queen Anne (1702–14) produced guineas in all years between 1702 and 1714 except for 1704. The 1703 guinea bears the word VIGO under the Queen's bust, to commemorate the origin of the gold taken from the Spanish ships at the Battle of Vigo Bay.
With the Acts of Union 1707 creating a unified Kingdom of Great Britain through the union of the Parliament of Scotland with the Parliament of England, the design of the reverse of the first truly British guinea was changed. Until the Union, the cruciform shields on the reverse showed the arms of England, Scotland, France, and Ireland in order, separated by sceptres and with a central rose, and the legend MAG BRI FR ET HIB REG date ("Of Great Britain, France, and Ireland Queen"). With the Act of Union, the English and Scottish arms appear conjoined on one shield, with the left half being the English arms and the right half being the Scottish arms, and the order of arms appearing on the shields becomes England and Scotland, France, England and Scotland, Ireland. The elephant and castle can appear on the coins of 1708 and 1709. The centre of the reverse design shows the Star of the Order of the Garter.
The coins weighed 8.3 g, were 25 mm in diameter, and had a gold purity of 0.9134. The edge of the coin is milled diagonally. In 1717, Great Britain adopted the gold standard, at a rate of one guinea to 129.438 grains (8.38 g) of crown gold, which was 22 carat gold.
King George I's guinea coins were struck in all years between 1714 and 1727, with the elephant and castle sometimes appearing in 1721, 1722, and 1726. His guineas are notable for using five different portraits of the king, and the 1714 coin is notable for declaring him to be Prince Elector of the Holy Roman Empire. The coins weighed 8.3–8.4 grams, were 25–26 millimetres in diameter, and the average gold purity was 0.9135.
The 1714 obverse shows the right-facing portrait of the king with the legend GEORGIVS D G MAG BR FR ET HIB REX F D ("George, by the grace of God of Great Britain, France, and Hibernia King, Fidei Defensor"), while the later coins bear the legend GEORGIVS D G M BR FR ET HIB REX F D. The reverse follows the same general design as before, except the order of the shields is England and Scotland, France, Ireland, and Hanover, with the legend in 1714 BRVN ET LVN DVX S R I A TH ET PR EL 1714 ("Duke of Brunswick and Lueneburg, Arch-Treasurer and Prince Elector of the Holy Roman Empire"), and in other years BRVN ET L DVX S R I A TH ET EL date ("Duke of Brunswick and Lueneburg, Arch-Treasurer and Elector of the Holy Roman Empire"). The edge of the coin is milled diagonally.
The value of the guinea had fluctuated over the years from 20 to 30 shillings and back down to 21 shillings and sixpence by the start of George's reign. A royal proclamation of December 1717 fixed the value of the guinea at 21shillings.
King George II's guinea pieces are a complex issue, with eight obverses and five reverses used through the 33 years of the reign. The coins were produced in all years of the reign except 1742, 1744, 1754, and 1757. The coins weighed 8.3–8.4 g, and were 25–26 mm in diameter except for some of the 1727 coins which were 24–25 mm. The average gold purity was 0.9140. Some coins issued between 1729 and 1739 carry the mark EIC under the king's head, to indicate the gold was provided by the East India Company, while some 1745 coins carry the mark LIMA to indicate the gold came from Admiral George Anson's round-the-world voyage. In the early part of the reign the edge of the coin was milled diagonally, but from 1739 following the activities of a particularly bold gang of guinea filers for whom a reward was posted, the milling was changed to produce the shape of a chevron or arrow-head. In 1732 the old hammered gold coinage was demonetised, and it is thought that some of the old coins were melted down to create more guineas.
The obverse has a left-facing bust of the king with the legend GEORGIVS II DEI GRATIA (GEORGIUS II DEI GRATIA between 1739 and 1743), while the reverse features a single large crowned shield with the quarters containing the arms of England+Scotland, France, Hanover, and Ireland, and the legend M B F ET H REX F D B ET L D S R I A T ET E ("King of Great Britain, France and Ireland, Defender of the Faith, Duke of Brunswick and Lueneburg, Arch-Treasurer and Elector").
The guineas of King George III weighed 8.4 g and were 24 mm in diameter, with an average gold purity (at the time of the 1773 assay) of 0.9146 (meaning it contained 7.7 g of gold). They were issued with six different obverses and three reverses in 1761, 1763–79, 1781–99, and 1813. All the obverses show right-facing busts of the king with the legend GEORGIVS III DEI GRATIA with different portraits of the king. The reverse of guineas issued between 1761 and 1786 show a crowned shield bearing the arms of England+Scotland, France, Ireland and Hanover, with the legend M B F ET H REX F D B ET L D S R I A T ET E date ("King of Great Britain, France and Ireland, Defender of the Faith, Duke of Brunswick and Lüneburg, Arch-Treasurer and Elector of the Holy Roman Empire"). In 1787 a new design of reverse featuring a spade-shaped shield was introduced, with the same legend; this has become known as the spade guinea.
In 1774 almost 20 million worn guineas of King William III and Queen Anne were melted down and recoined as guineas and half-guineas.
Towards the end of the century gold began to become scarce and rise in value. The French Revolution and the subsequent French Revolutionary Wars had drained gold reserves and people started hoarding coins. Parliament passed a law making banknotes legal tender in any amount, and in 1799 the production of guineas was halted, although half- and third-guineas continued to be struck. Following the Act of Union between Great Britain and Ireland in 1800, the king's titles changed, and an Order in Council of 5 November 1800 directed the Master of the Mint to prepare a new coinage, but although designs were prepared, the production of guineas was not authorised.
In 1813 it was necessary to strike 80,000 guineas to pay the Duke of Wellington's army in the Pyrenees, as the local people would accept only gold in payment. This issue has become known as the Military Guinea. At this time, gold was still scarce and the guinea was trading on the open market for 27 shillings in paper money, so the coining of this issue for the army's special needs was a poor deal for the government, and this was the last issue of guineas to be minted. The reverse of the military guinea is a unique design, showing a crowned shield within a Garter, with HONI SOIT QUI MAL Y PENSE on the Garter, and BRITANNIARUM REX FIDEI DEFENSOR ("King of the British, Defender of the Faith") around the edge, and "1813" between the edge inscription and the garter.
Replacement by the pound
Even after the coin ceased to circulate, the name guinea was long used to indicate the amount of 21 shillings (£1.05 in decimalised currency). The guinea had an aristocratic overtone; professional fees and payment for land, horses, art, bespoke tailoring, furniture and other luxury items were often quoted in guineas until a couple of years after decimalisation in 1971. It was similarly used in Australia until that country went to decimal currency in 1966.
It is still quoted in the pricing and sale of livestock at auction and racehorses, where the purchaser will pay in guineas but the seller will receive payment in an equal number of pounds. The difference (5p in each guinea) is traditionally the auctioneer's commission. Many major horse races in Great Britain, Ireland, Canada, New Zealand and Australia bear names ending in "1,000 Guineas" or "2,000 Guineas", even though the nominal values of their purses today are much higher than the £1,050 or £2,100 suggested by their names.
- Egyptian pound, the native name of which is derived from the guinea, to which it was approximately equal in value in the late 19th century.
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The coins were named because much of the gold used to produce them came from the Gold or 'Guinea' Coast of West Africa and was provided by the Royal African Company, which had been granted a monopoly of the Africa trade from 1672 until 1698. Coins produced from African gold bore the company's distinctive emblem below the monarch's head: an elephant or elephant and a castellated howdah, an ornate canopied seat used for riding on elephants and camels.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
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