Apothecaries' system countries. The weight of an apothecaries' pound was 345.1 g in Spain and 344.2 g in Portugal. As in Italy, some of the additional subdivisions of the Roman system, such as the "obolo", were still in use there. It was standard to use the "marco", defined as 8 ounces, instead of the pound. In 18th century France, there was a national weight standard, the "marc de Paris" of 8 ounces. The civil pound of 16 ounces was equivalent to 2 marks, and it was also used as the apothecaries' pound. With 30.6 g, the ounces were considerably heavier than other
Pound (mass) Jersey from the 14th century to the 19th century. It was equivalent to about 7,561 grains (490 grams). It may have been derived from the French livre poids de marc. The trone pound is one of a number of obsolete Scottish units of measurement. It was equivalent to between 21 and 28 avoirdupois ounces (about 600-800 grams). In many countries, upon the introduction of a metric system, the pound (or its translation) became an informal term for 500 grams. In German, the term is "Pfund", in French "livre", in Dutch "pond", in Spanish and Portuguese "libra", in Italian "libbra", and