quarro

1

In Lucca and Siena, Italy, 15th century, a unit of length used for cloth, = ¼ braccio, about 146 centimeters.

2

In Venice, 15th century, a unit of mass for gold and precious stones, = ¼ oncia. If the Venetian grano of the weight of the marc was (~238.5/4608 =) ~0.052 grams, the quarro would be ~1.24 grams.

Tutto oro filato e sodo e ariento e perle picchole si vendeno a libra ch'è de once 10, quarti 3, charati 28. E l'oncia è quattro quarti. El ¼ è charati 6, el charato è 4 grani al peso del marcho che viene a questo peso dell'ariento e oro filato e sodo a essare fra 'l peso delle spezie e quello dell'ariento sodo.

All gold, wire and solid, silver and small pearls are sold by a weight which consists of 10 once, 3 quarti, 28 carati. And the oncia is 4 quarti. The quarti is 6 carati; the carati is 4 grani of the weight of the marc, which causes this weight of silver and gold wire and bullion to be between the weight of spices and that of silver bullion.

Chiarini, 1481. Borlandi, page 45.

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