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castellano

1

In Spain, ? – 1731, a unit of mass used only for gold, = ¹⁄₅₀ of a marco of Castile, about 4.9 grams. Its use in Spain was ended by a royal order of 31 August 1731, but it continued in use in South America. It was also used to indicate the gold content of alloys.

sources

El Castellano, que sirve á ensayar al oro, tiene 24 quilates, el quilate tiene 4 grános, y el grano 8 partes.

El Marco, para el ensayo de la plata, se divide en 12 dineros, y cada dinero en 24 granos.

La ley de la plata labrada debe ser de 9 dineros. Los Contrastes se sirven de diferentes marcas para sellarla.

El Marco Castellano, que por otros nombres tiene los de Marcos de Colonia y Burgalés, sirve para pesar el oro, la plata y otras alhajas. Se compone de 8 onzas; pero la onza se divide en otras diferentes pesas, que se verán mas claramente en la tabla siguiente.

[The chart has been reset in the format used in Sizes.com. There is an apparent typo in the original, an extraneous "3" indicating 3 castellanos per castellano--ed.]

								marco
							onzas	8
					castellanos		6¼	50
				ochavas		1⁷⁄₂₅	8	64
			adarmes		2	2¹⁴⁄₂₅	16	128
		tomines de plata		3	6	7¹⁷⁄₂₅	48	384
	tomines de oro		1¹⁄₂₄	3⅛	6¼	8	50	400
granos de plata		11¹³⁄₂₅	12	36	72	92⁴⁄₂₅	576	4608
granos de oro	1¹⁄₁₄	12	12½	37½	75	96	600	4800

Por aquí se ve que el Marco castellano para pesar la plata se divide en 4608 granos, y para pesar el oro en 4800 : por lo que debo prevenir, que para mayor uniformidad en esta obra me he servido siempre de la primer division; y así todas las veces que se trata en ella de granos del Marco castellano, ó so1amente de granos sin otra denominacion, se deberá entender de los que compone el Marco de plata.

The castellano that serves for assays of gold has 24 carats, the carat has 4 grános, and the grain 8 parts.

The marco for the assay of silver, is divided into 12 dineros, and each dinero into 24 granos.

By law worked silver must be 9 dineros. The alloys are sealed with different hallmarks.

The marco castellano, which is also called marco de Colonia and marco de Burgalés, serves to weigh gold, silver and other jewelry. It consists of 8 ounces, but the ounce is divided into other different weights, which will be more clearly seen in the table below.

Here we can see that to weigh silver the marco castellano is divided into 4608 grains and to weigh gold into 4800: so I must warn that for greater uniformity in this work I have always used the first division. And so whenever grains of the marco castellano are mentioned, or grains without any other denomination, grains of the marc of silver must be understood.

Arrospide (1789), pages 4 & 5.

2

In Chile , ? – 19ᵗʰ century, a unit of mass equal to ¹⁄₁₀₀th of a libra, about 0.46 grams.

Since 2 marcs traditionally made a libra, this is essentially the same unit as the one above.

Guillame and Volet, (1926). page 4.