Farthings
The Farthing was a small British coin that was worth one-quarter of an old penny - 1/960th of a Pound. Farthings were minted as early as the 13th century under the reign of Edward I, although they may have been minted earlier under Henry III. It was last minted in 1956. There are also half-, third- and quarter-farthings.
FD
See Fidei Defensor.
FDC (Fleur de Coin)
A coin that is a perfect specimen.
Fiat currency
Money issued by a government but not backed by a physical commodity (e.g. gold or silver), just by the government that issued it.
Fidei Defensor
Means 'Defender of the Faith'. The British Monarch is also head (Supreme Governor) of the Church of England. In the Church hierarchy, the Monarch is above the Archbishop of Canterbury. Often abbreviated to FD.
Filler
A coin (in a collection) that is poor or well worn but is kept until a better or more expensive specimen can be obtained.
Fineness
The purity as a decimal of 1.000 e.g. 90% pure is .900. The best in practice is 0.99999 fine.
Flan
The blank piece of metal before striking, also called a planchet or a blank.
Florin
The Florin is a 2 shillings coin, generally known as the "Two Bob" piece. The British florin was issued from 1849 until 1967, with a final collectors coin dated 1970. After decimalisation it became the 10p piece. See Florins section.
Forgery
Often used as synonymous to counterfeit, as in fake.
Franc
Currency of France before they adopted the Euro. Subdivided into 100 centimes.
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Numismatics is the study of coin collecting and it also has its own language with many words and terms. Our Glossary of Numismatic Terms give the explanation to some of these coin collecting words. To contribute terms please email them to glossary@coinparade.co.uk.