Multi Barrel Gun , by leonardo da vinci , 1481 , design , Early Renaissance style , designs and sketches, Sketch
A drawing of three different types of machines.
A drawing of three different types of machines.  The first machine is a cart with two large wheels on it.  It has a wooden top and a wooden base.  There is a large wheel on the front and two smaller wheels on the back.  One of the machines has a long metal blade with a long handle on the end.  Another machine is smaller and has a shorter blade.  All three machines are drawn in black and white.