Amazing Leonardo Da Vinci Inventions You Can Build Yourself, Paperback by Anderson, Maxine, ISBN 0974934429, ISBN-13 9780974934426, Brand New, Free shipping in the US

From armored tanks and gliders to "plastic glass" and drawing machines, an interactiv explores the incredible mind of Leonardo da Vinci through hands-on projects and activities that can be made, for the most part, using simple household supplies. Original. $10,000 ad/promo.