Opusculum de architectura, between 1474 and 1482

Folio 74r: water-mill driven by siphoned water. Cf. Mancini, fig. 21 pen and brown ink and brown wash, over brown chalk. Date: between 1474 and 1482. Dimensions: Height: 274 mm; Width: 229 mm (covers). Medium: wool. Collection: British Museum.