Altimeter, Civilian Sally Bomber Since the factory seals are

Since the factory seals are intact over screw heads

AN 01-190EB-1

Here is a fine example of the US Navy's Aircraft Direct Reading Magnetic Compass Mark VIII

radio compass SCR-269-G is a complete operable unit capable of providing: (a) automatic bearing indication of the direction of arrival of radio frequency energy and simultaneous aural reception of modulated or unmodulated radio frequency energy

The instrument is in exceptional condition for its age

Altimeter, Civilian Sally Bomber Since the factory seals areThe knob is used to adjust the altimeter to the barometric pressure is displayed in the small window at the 3 o'clock position. The glass and case are intact, and the knob rotates, and the pointers move. Measures 3. 25 inches diameter and ~4 inches deep.