The sign accompanying the Mark IV pressure suit. It reads
Mark IV Pressure Suit
Beginning in 1949, the U.S. Navy supported the B.F. Goodrich Company's
development of the full pressure suit initiated by Wiley Post. Improvements
were made which reduced bulk, increased mobility, and provided for effective
In 1959, the Mark IV pressure suit was accepted by the U.S. Navy as a
high-altitude emergency suit.
A few years later, a modification of this suit was chosen for America's first
six space travelers, the Project Mercury astronauts.
Construction: Exterior-nylon. Interior-bladder of chloroprene on nylon
Developed and manufactured by B.F. Goodrich Co.
From National Aeronautics and Space Administration