The Virgin and Child with Saint Anne and Saint John the Baptist
c. 1499-1500
The Virgin and Child with a Cat
c. 1481
The Proportions of a Standing, Kneeling and Sitting Man
c. 1490
The Ermine as a Symbol of Purity and Moderation
c. 1489-94
Study of violets; technique for soldering a lead covering onto a roof
c. 1487-90