It ceased to be minted in 1816.
They are called Guinea Pigs because they were sold in England for a Guinea, which is a coin used over in the United Kingdom.
The last British One Guinea coin struck for circulation was dated 1813.
In Canada we have the loonie which is worth 1 dollar and is a coin. But the penny, which is worth 1 cent, was just taken out of circulation.
The largest denomination British coin in circulation is the Five Pound (Crown) coin, although it is intended to be a commemorative coin and is not generally accepted as a "general circulation" coin.The largest denomination British coin in general circulation is the Two Pound coin.
Guinea - British coin - was created in 1663.
The Bank of England Five Pound note, as are all Bank of England banknotes, is made from cotton and fibre manufactured under extremely high pressures. It is the Five Pound note that is used in general circulation. The Royal Mint produces a cupro-nickel Five Pound coin as a commemorative. The coin is legal tender but is not intended as a general circulation coin and many businesses will not accept them.
It depends on the nation. The smallest circulating US coin is a dime, but for other countries it really depends. But the smallest historic coin that the US has minted for circulation is the silver three cent piece.
In the UK, the highest value coin in current wide circulation is the £2 coin.
It depends on what, exactly, is meant. Guineas were an old coin minted in England. Guinea pigs are small, furry rodents, often kept as pets. Guinea fowl are speckled poultry.
The name Guinea Pig came from the sailors. sailors thought their squeals sounded like a pigs. and they sold guinea pigs for one guinea. thus guinea pig.
It was the 20pence coin
The Guinea and its fractional denominations were withdrawn from circulation in 1816 and effectively replaced by the Sovereign and Half-Sovereign (One Pound and Ten Shillings respectively). When the Guinea was in circulation, it was worth One Pound and One Shilling (or 21 Shillings). The Shilling was progressively withdrawn from circulation after decimalisation. The Shilling became 5 New Pence in the new decimal currency. A Half-Guinea in modern terms, would be the equivalent of 55 Pence.