Parallelepiped with a diametral cut, with accounts for Arrigo
A cut solid and a tall prism, beside notes of gold ducats owed to Arrigo
The leaf combines solid geometry with a pair of account notes. A large parallelepiped is drawn in perspective, its interior crossed by a diagonal cutting-plane, beside a taller narrow prism whose opposite vertices are joined by lines. Two memoranda record sums of gold ducats owed to a certain Arrigo, one written in charcoal beneath the drawings and one in red chalk.
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Parallelepiped with a diametral cut
A large rectangular solid is drawn in perspective, its interior crossed by a diagonal plane that cuts it from edge to edge. A second, tall and narrow parallelepiped stands to the right with its opposite vertices joined by lines. The captions describe a parallelepiped with a diametral cut and a double parallelepiped.
Payments owed to Arrigo
A note records that Arrigo is to receive four gold ducats in mid-August, while a second entry states that he is to have eleven gold ducats. The two memoranda are written respectively in charcoal beneath the drawings and in red chalk.