Architectural studies
Studies of central plan buildings
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Pen and ink on paper, 23 x 16 cm
Institut de France, Paris
Study of a central church
c. 1488
Pen, ink and black chalk on paper, 24 x 19 cm
Bibliothèque de l'Institut de France, Paris
Studies of the Villa Melzi and anatomical study
1513
Pen and ink on paper
Royal Library, Windsor