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  2. Troy weight - Wikipedia

    en.wikipedia.org/wiki/Troy_weight

    The troy weight units are the grain, the pennyweight (24 grains), the troy ounce (20 pennyweights), and the troy pound (12 troy ounces). 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. Legally, one troy ounce ...

  3. Pennyweight - Wikipedia

    en.wikipedia.org/wiki/Pennyweight

    A pennyweight (dwt) is a unit of mass equal to 24 grains, 1 ⁄ 20 of a troy ounce, 1 ⁄ 240 of a troy pound, approximately 0.054857 avoirdupois ounce [1] and exactly 1.55517384 grams. [2] It is abbreviated dwt , d standing for denarius – (an ancient Roman coin), and later used as the symbol of an old British penny (see £sd ).

  4. Sovereign (British coin) - Wikipedia

    en.wikipedia.org/wiki/Sovereign_(British_coin)

    The sovereign is a British gold coin with a nominal value of one pound sterling (£1) and contains 0.2354 troy ounces (113.0 gr; 7.32 g) 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.

  5. Grain (unit) - Wikipedia

    en.wikipedia.org/wiki/Grain_(unit)

    The original mercantile pound of 25 shillings or 15 (Tower) ounces was displaced by, variously, the pound of the Hanseatic League (16 tower ounces) and by the pound of the then-important wool trade (16 ounces of 437 grains). A new pound of 7,680 grains was inadvertently created as 16 troy ounces, referring to the new troy rather than the old ...

  6. Pound (currency) - Wikipedia

    en.wikipedia.org/wiki/Pound_(currency)

    The English word "pound" derives from the Latin expression lībra pondō, in which lībra is a noun meaning 'pound' and pondō is an adverb meaning 'by weight'. [ 1 ] [ 2 ] The currency's symbol is ' £ ' , a stylised form of the blackletter 'L' ( L {\displaystyle {\mathfrak {L}}} ) (from libra ), crossed to indicate abbreviation.

  7. Mark (unit) - Wikipedia

    en.wikipedia.org/wiki/Mark_(unit)

    Like the German systems, the French poids de marc weight system considered one "Marc" equal to 8 troy ounces. [citation needed] Just as the pound of 12 troy ounces (373 g) lent its name to the pound unit of currency, the mark lent its name to the mark unit of currency.

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  9. List of British banknotes and coins - Wikipedia

    en.wikipedia.org/wiki/List_of_British_banknotes...

    Bullion / collectors' coins issued in 2018 to 2021; 1 troy ounce of silver, with a value of £2, or 10 troy ounces, valued at £10. [8] Twenty pounds: £20 Introduced in 2013 as a commemorative coin. [9] Fifty pounds: £50 Introduced in 2015 as a commemorative coin. [10] One hundred pounds: £100 Introduced in 2015 as a commemorative coin. [11]