French EFA T-21 (Etudes et Fabrications Aeronautiques), used by Swiss

Mirage III S pilots on high-altitude interception missions. It was worn with an

EFA ARZ 30 pressure suit and a white SGP-21 leather protection overall

(defined "habit de lumiere" - "shining suit"). This equipment was declared obsolete

when the Mirage III S was phased out.

This view shows the visor seal inflating valves/controls and the rear knob, which adjusts, via a set of cables, the internal padding of the helmet.

The knob at the visors swivelling point locks/unlocks the clear visor.

Oxygen hose connection and communication cable.

The visor knob on this side locks/unlocks the dark visor.

The soft EFA helmet bag was stored in the typical heavy "Sportex" cardboard carrying box.

Remains of stamps and addresses of Swiss AF bases on the box cover are giving evidence of helmets being shipped by ordinary mail. (!)