Altimeter, French Armée de l'Air, 0-4,000 meters Aera Type M40 Anson Measures approximately 8

Measures approximately 8

this is not aviation in nature

The amazing piece of American tank engineering

This example shows its age

Altimeter, French Armée de l'Air, 0-4,000 meters Aera Type M40 Anson Measures approximately 8This French altimeter, indicating altitude to 4,000 meters, is presumed to be WW II era from an aircraft of the Arme de l'Air. Made by Aera of Paris, Type M 40, it has a knob to adjust for barometric pressure, which is displayed in the window above center. Measures ~3. 25 inches diameter and ~2. 75 inches deep. In reasonable condition given its apparent age. The knob turns and rotates the barometric scale.