Columbia subject headings:
Drawing--Early works to 1800.
Proportion (Art)
Harvard subject headings:
Drawing--Early works to 1800.
Manuscripts, Italian--Facsimiles.
Proportion (Art)
Princeton subject headings:
Drawing--Early works to 1800.
Leonardo, da Vinci, 1452-1519.
Pacioli, Luca, approximately 1445-1517.
Proportion (Art)--Early works to 1800.