Da Vincis notebook. Late 19th Century reproduction of a page from a notebook written by Leonardo da Vinci (14521519), showing his design for a waterpowered, geardriven machine for manufacturing cannon barrels. Published circa 18941904.
Da Vincis notebook. Late 19th Century reproduction of a page from a notebook written by Leonardo da Vinci (14521519), showing his design for a waterpowered, geardriven machine for manufacturing cannon barrels. Published circa 18941904.
