Compass (Busola) Magnetic Direct Reading, PZL Type 1 F-86 The Altitude Selector Switch allowed

The Altitude Selector Switch allowed the pilot to set the lower altitude limit over the terrain

as used in the C-47 Dakota Transport with a similar version used in the TBM Avenger Torpedo Bomber

for the Air Corps

drop center

This is a 1950-60's-era Attitude Gyro Horizon Indicator as used in early versions of the US Navy/Marine Corps Jet Fighter/Attack Aircraft Douglas A4D-1 Skyhawk

Compass (Busola) Magnetic Direct Reading, PZL Type 1 F-86 The Altitude Selector Switch allowedHere is a Direct Reading Magnetic Compass (Busola), Type 1, made by, or for, the Polish aircraft manufacturer PZL (Pastwowe Zakady Lotnicze). The compass fluid is present and the compass card swings freely. Accuracy seems to be slightly off, but could probably be recalibrated with the compensator screws. Measures ~2. 5 inches diameter and ~2 inches deep.