Bombing - Students' Manual, US Army Air Force Training Command WWII Mosquito The time is set by

The time is set by pulling out and rotating the knob at the front corner and rotating

All knobs appear to operate mechanically as intended

The B-11 indicator was used across all Air Corps dual engine aircraft

but likely made by Dr

which would illuminate the compass cards and inclinometer

Bombing - Students' Manual, US Army Air Force Training Command WWII Mosquito The time is set byThis is an original Students' Manual for Bombing published by the US Army Air Forces Training Command in bombardier schools during WWII. This ~3 4 inch thick manual covers all topics necessary to effectively train a WWII bombardier in theory, equipment, use, and maintenance, including the M Series (Norden) bombsight. It is in exceptional condition given its age. All pages appear to be intact.