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fuang

In Laos and Thailand [Thai. เฟื้อง], at least as early as the 17ᵗʰ century – 20ᵗʰ century, a unit of mass, = 1.875 grams. Also romanized as fueang, fueong.

United Nations, 1966.

sources

Le foüang est aussi une monnaye d'argent; & vaut quatre payes.

The fuang is also a silver coin and is equal to 4 pais.

[Simon] de La Loubère.
Du Royaume de Siam. Tome Second.
Amsterdam: Abraham Wolfgang, 1691.
Page 48.