This helmet is an early Gemini model, used during the testing phases of helmet design.
Like the later models, this helmet was constructed of fiberglass and epoxy resin and was molded to fit directly into the neck bearing disconnect. Oxygen was channeled into the helmet through a series of small holes along the upper surface called a "spray bar". A Plexiglas visor, capable of being raised and lowered was attached with pivots, and when lowered into pressure sealing position, locked in place with a latch. Communication devices with suede-covered ear pads were incorporated into the helmet.
Constructed in 1964, this helmet was transferred to the National Air and Space Museum from NASA in 1978.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.