The sign accompanying the Project Mercury spacesuit. It reads
Project Mercury Spacesuit
The Project Mercury suit, an adaptation of the U.S. Navy Mark
IV pressure suit, was designed to serve as an emergency backup system in
case of spacecraft cabin decompression. This type of suit was worn by the
astronauts on all Project Mercury flights.
Construction: Inner layer of neoprene-coated fabric; restraint layer of
aluminized nylon fabric.
Manufactured by B.F. Goodrich Co.