'The weight system used for gems & precious metals; 1.215 of its pounds equals one avoirdupois pound'
troy
MEASURE UP: The weight system used for gems & precious metals; 1.215 of its pounds equals one avoirdupois pound
The weight system used for gems & precious metals; 1.215 of its pounds equals one avoirdupois pound
The weight system used for gems & precious metals; 1.215 of its pounds equals one avoirdupois pound
MEASURE UP
troy
MEASURE UP