36 grains     = 12 Semisextula	216 grains    = 72 Semuncia
72 grains     = 24 Sextula	*432 grains   = 144 Unica*
108 grains   = 36 Sicilicus	*5184 grains = 1728 Libra*
*144 grains = 48 Duella	_