The Sperry Pilot for Automatic Flying (Gyropilot) By Books / Paperback Transportation › Aviation Publisher: Sperry Gyroscope Company, Inc., January 1935 Price $90.51 Free Shipping Send to a friend Collectible - Good Brooklyn, NY: Sperry Gyroscope Company, Inc., 1935. 12mo. 24pp. Illus. Good book. Covers rubbed and creased. Owner's name on title page. (aviation, aeronautical instruments, gyroscopes) Inquire if you need further information. $90.51 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.