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Compare carat.

1

In Colombia, 20ᵗʰ century, a unit of mass, = 200 milligrams, the metric carat.

United Nations, 1966.

2

In Portugal and Brazil , ? – 19ᵗʰ century, a unit of mass used for precious metal and stones, about 199.1 milligrams. According to Doursther (1840), in Lisbon 205.8 mg and in Rio de Janeiro 199.2 mg. According to Klimpert (1892), 205.83 mg in both cities.

3

In Spain, a unit of mass for precious stones, 19th century, = 4 Castillian granos = ¹⁄₁₄₀ of a Castillian onza used for precious stones, about 199.7 milligrams. According to Klimpert, 199.693 mg.