This pressure helmet was a transparent bubble made for and worn by astronaut Ed Mitchell, Lunar Module pilot for the Apollo 14 mission in January 1971.
The Apollo pressure helmet was a transparent bubble designed to attach to the spacesuit neck ring. It was constructed of a polycarbonate shell with a red anodized aluminum neck ring, a feed port, a vent pad and duct assembly attached to the rear and a valsalva device attached to the inner ring.
There were two configurations used on Apollo suits which were not interchangable, the earlier configuration was anodized blue, with the later configuration was red.
NASA transferred this pressure bubble to the Museum in 1971.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.