daCodex style drawing, cross-hatching. A detailed 15th-century sketch of an intricate mechanical device designed for lifting heavy objects. The device consists of a large wooden frame reinforced with metal joints, supporting a system of pulleys and counterweights. A central winding mechanism with a hand crank is attached to a series of interlocking gears and a heavy iron chain. Smaller sketches in the margins show the detailed construction of the pulley system, including tension points and gear teeth alignment. Handwritten explanatory text in Italian script surrounds the drawing, labeling key components and explaining the mechanics. The parchment background is aged and slightly worn, with ink smudges and subtle imperfections.
