MANCA, was a square piece of gold coin, commonly valued at 30 pence; and mancusa was as much as a mark of silver, having its name from mancusa, being coined with the hand: (Leg. Carut.) But the mancusa and mancusa were not always of that value; for sometimes the former was valued at six shillings, and the latter, as used by the English Saxons, was equal in value to our half crown. Mancusa sex solidis æstimetur, (Leg. H. 1. c. 69.) Thorn in his chronicle, tells us, that mancusa est pondus duorum solidorum et sex denariorum; and with him agrees Du Cange, who says, that 20 mancæ make 50 shillings. Mancæ and mancusa are promiscuously used in the old books for the same money.