Pyramid suspended at its centre of gravity; circles
A tapering figure divided into similar triangles hangs from a balance bar, with a dated money note
In red chalk a tapering pyramidal figure, ruled internally into a row of similar triangles, hangs from a horizontal bar so that it balances about its centre of gravity, with rounded 'circle' forms sketched above and below it. The e-Leo captions describe a pyramid decomposed into similar pyramids and suspended at the barycentre, and label the round motifs as circles drawn in pen. A separate note in mirror script at the head of the leaf records a date and a sum of money.
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Pyramid balanced about its centre of gravity
The tapering figure is shown hung from a horizontal bar so that it hangs level, illustrating suspension at the centre of gravity. The caption names it a pyramid suspended at its barycentre.
Pyramid decomposed into similar figures
The body of the figure is divided by ruled lines into a series of smaller triangles of the same shape, the geometric decomposition of a pyramid into similar pyramids. Rounded 'circle' forms accompany it above and below.
Note of a date and sum
A short line in mirror script records a memorandum of money: on the first day of February, 1200 lire. It is written apart from the drawing, along the upper edge.