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thail

In the Dutch East Indies, and later Indonesia, 20ᵗʰ century, a unit of mass, approximately 54.09 grams for precious metals, approximately 38.601 grams for opium. The thail for ordinary goods, ¹⁄₁₆₀₀ of a pecul, was the same magnitude as the opium thail.

United Nations, 1966.

International Critical Tables, 1926. Page 5.