A reference page from Lt. Bancroft's personal naval aviator flight log book, printed with the standardized 'Character of Flight Symbols' used to code each mission entry and a 'Special Qualifications' table for carrier and instrument certifications. Log books of this design were standard issue for U.S. Navy and Marine Corps pilots through the Korean War era, and their entries provide a detailed, contemporaneous record of a pilot's training and combat service. Project: 218133