First edition, November 1942.
SD-84-85. Copy No. 541; Airplane No. 00138.
Includes a card found in the back of the binder in which the manual was originally stored: "Pilot's Mark 4 Gyropilot Check" on one side, "Mechanic's Mark 4 Gyropilot Check" on…
Document no. D-3910. Issue no. 22. Issued on March 21, 1945.
Boeing contract no. NXsa 16848.
"Manufactured by the Boeing Aircraft Company for the United States Navy under contract NXsa 16848."