Folio 29

This page contains two sketches in red chalk, a medium also known as sanguine. There is no accompanying handwriting on this folio.

A red chalk sketch at the top of the page shows a horizontal beam or axle. It supports several identical mechanical components, which may be levers or trigger mechanisms for a machine or a musical instrument. This study illustrates how Leonardo used red chalk to quickly capture technical ideas.

A quick architectural sketch appears in the middle of the page. It depicts a symmetrical building facade. The design features a central block with two stories and lower wings on each side. This layout was common for Renaissance villa designs. The drawing serves as a preliminary study for a building's proportions and overall appearance.

sanguine (sanguigna), architectural study (studio d'architettura), mechanical sketch (schizzo meccanico)