The earliest known occurrence of the word "avoirdupois" (or some variant thereof) in England is from a document entitled Tractatus de Ponderibus et Mensuris or Treatise on Weights and Measures.
Charles Moore Watson (1844–1916) proposes an alternate etymology: The Assize of Weights and Measures (also known as Tractatus de Ponderibus et Mensuris), one of the statutes of uncertain date from the reign of either Henry III or Edward I, thus before 1307, specifies "troni ponderacionem"—which the Public Record Commissioners translates as "troy weight".
The Composition of Yards and Perches belongs to a class of documents known as Statutes of uncertain date generally thought to be from c.
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Stamps FO 479 of Postverk Føroya
Date of issue: 26 March 2004
Design: Anker Eli Petersen | Statutes of uncertain date | statutes of uncertain date | Statutes of Mortmain |