Aeronautical engineer (1925–2007); founder of AeroVironment and the designer of the human-powered aircraft that won the Kremer prize. Seven items: color glossy 7 x 5 photo signed in black felt tip; one of MacCready’s AeroVironment Inc. business cards, signed in black ink; a 4 x 3.25 beige bookplate signed in black ink; and four magazine pages, each also signed in black ink. In overall fine condition. RRAuction COA.
