Sextant, Aircraft Periscopic, MS28011-5 Vickers This D-7 was made by

This D-7 was made by Kollsman

It has a serial number prefix of AC-39

This is a vintage Cold-War-era Outboard Wing Tank Fuel Quantity Indicator

such as the P-38 Lightning

F-80 Shooting Star

Sextant, Aircraft Periscopic, MS28011-5 Vickers This D-7 was made byThis is a Cold War era Periscopic Aircraft Sextant and Case, as used by navigators in aircraft of the US Air Force such as B 36 Peacemaker, B 47 Stratojet, B 50 Superfortress, B 52 Stratofortress, and of the US Navy such as the P2V Neptune and others. The periscopic sextant was used by navigators to fix and track the position of the aircraft in flight, usually by nighttime celestial (star) readings, but also by the position of the sun in daylight. The