Aircraft Clock, 24 Hour, 8 Day Wakmann Model A-11-24 Lockheed Measures ~ 6 inches by

Measures ~ 6 inches by ~4

and a ~50 page supplement on the 50 Cal machine gun

see logo with the 3-crown symbol of Sweden on the inside flap

This is an authentic vintage Direct Reading Free Air Temperature Indicator Type C-13A

The knobs turn freely

Aircraft Clock, 24 Hour, 8 Day Wakmann Model A-11-24 Lockheed Measures ~ 6 inches byHere is a fine specimen of a Swiss made 24 hour, 8 Day Aircraft Clock, manufactured by Wakmann, Model A 11 24 likely 1950 1960's vintage. The knob sets the time when pulled and rotated; otherwise the knob winds the clock when rotated clockwise. The clock works when wound and seems to keep time, but its accuracy has not been confirmed. It has an aluminum case measuring 2 3 8 inches square and the round clock face measures 2 1 4 inches diameter.