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8120. STANDARD (Weights), Avoirdupois and Troy.—

It would be for their [the people's] convenience to suppress the
pound and ounce troy, and the drachm and
quarter avoirdupois; and to form into one
series the avoirdupois pound and ounce, and the
troy pennyweight and grain.—
Coinage, Weights and Measures Report. Washington ed. vii, 486.
(1790)