The helmet was originally made for an early B.F. Goodrich Gemini developmental suit, and was later modified to become part of an early David Clark Gemini suit. At that time it was used by a variety of astronauts during training sessions prior to the Gemini missions of the 1960s.
The helmet was constructed of fiberglass and epoxy resin and was molded to fit directly into the neck bearing disconnect. A Plexiglas visor, capable of being raised for access, was attached with pivots, and when lowered into pressure sealing position, it locked in place with a latch. Communication devices with suede-covered ear pads were incorporated into the helmet.
Transferred to the National Air and Space Museum from NASA in 1971.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.