3 · Human Being, Man in General
31 · man in a general biological sense
31A · the (nude) human figure; 'Corpo humano' (Ripa)
31A3 · the (five) senses
31A31 · sight, looking (one of the five senses)
31A311 · eyeglasses, spectacles
31A3111 · monocle, single lorgnette