Air France Mach Speed Gauge by Sperry

A very good condition Mach speed unit, as removed from Air France commercial aircraft. The unit has part number 259-4621-917.

The rear cannon plugs are in good order, although the unit itself has not been tested and is therefore considered unservicable.

The unit features a label explaining the maximum operation limits in terms of speed and altitude.

Own a rare and sought after piece of aviation history,