USAF Pilotage Chart.

Various editions. Relief shown by contours, hypsometric tints and spot heights. Depths shown by bathymetric isolines.; Originally published, with the title "AAF Pilotage Chart," by the U.S. Army Air Forces.; Sheets have various lithography statements: Lithographed by U.S. Lake Survey; Lithographed by ACS; Lithographed by UP; Lithographed by JSS; Lithographed by ACIC.; Each sheet has individual name and number e.g. (500B) Ketoku.; Sheets numbered according to World Aeronautical Chart scheme.; Some sheets titled "USAF pilotage chart-low altitude"; Legend, aeronautical information, diagram "Interchart relationship," and index map "World aeronautical chart index" on verso.Pilotage chart