COVE

Brunelleschi was the main designer, engineer, and architect of the Florence Duomo. He was the master of his time, so it is no surprise that Leonardo looked up to him heavily. This sketch comes from Leonardo's notebook and dissects the main components of Brunelleschi's reversible hoist. This is thought to be the main machine that hoisted material to the top of the duomo, making it safe to infer that Leonardo worked closely with Verrocchio and therefore Brunelleschi on the construction of the duomo and its lantern.

Attribution: https://erenow.net/biographies/leonardo-da-vinci-the-flights-of-the-mind...