The sign accompanying the SR-71 pressure suit. It reads
The Lockheed SR-71 Blackbird
operated at altitudes of up to 30,500 meters (100,000 feet). To survive in the
rarified atmosphere in the event of a catastrophic failure, the crew had to
wear full pressure suits. This suit is a high-altitude assembly consisting of
a full-pressure coverall, gloves, and pressure helmet. The system also
includes a torso parachute harness with an integrated flotation life preserver.
Lt. Col. Joseph T. Vida wore this suit during the coast-to-coast,
record-breaking final flight of the Museum's SR-71. Vida was a Blackbird
crew member from August 1974 until his retirement from the Air Force in 1990,
having served both in the operational program and the SR-71 Flight Test Group.
He was chief of the Flight Test Group when he retired and had logged over 1,390
hours in SR-71s, more than any other Blackbird crewmember.
The Smithsonian has since removed all of the inventory numbers from their
collections database when the Smithsonian re-did the database's interface, and
archive.org's Wayback Machine hadn't saved the original URLs.