Drawing of Ginevra Benci.
Crayon of Cecilia Gallerani.
Silverpoints of Boltraffio, Salai, Marco d’Oggiono, Francesco Melzi.
Head of Christ.
Disciples.
Series of Last Supper drawings.
Astronomy: distance of sun and earth.
Anatomy: 60 drawings—
Muscles of upper limbs,
muscles of legs,