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anco

In Seville, 14ᵗʰ – 15ᵗʰ centuries, a unit of dry capacity used for grain, = 1/12 caffiso, about 52.8 liters. Also spelled ancho, anaco.

Chafissi 1 di grano di Sibilia fanno in Firenze staia 26. Sappi che uno chafisso sono 12 anchi e anchi 1½ sono 2 quarte. Pesa la quarta libre 45 d'once 21 la libra.

One caffiso of grain in Seville makes 26 Florentine staia. Know that 1 caffiso is 12 anchi and 1½ anchi is 2 quarte. The quarta weighs 45 libra of the libra of 21 onces.

Chiarini, 1481, as quoted in Borlandi, page 39.

Assuming the 15th-century Florentine staia was about 24.36 liters, the anco would be 52.8 liters. We would like to know more about this libra of 21 ounces.