In Carrara, Italy, 18ᵗʰ – 19ᵗʰ centuries, a unit of volume used to measure marble produced in the area's renowned quarries, = 25 cubic palmi (each palmo approximately 0.2436 meters), approximately 0.3613 cubic meters. A carrata of marble weighs about 1 ton avoirdupois.

Patrick Kelly.
The Universal Cambist... 2nd Ed.
London: Longman, 1835.

Vol. 1, page 63.


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