The sign accompanying the suit. It reads
This spacesuit was worn by astronaut Eugene A. Cernan aboard Apollo 10 (May
18-26, 1969). On this mission, along with fellow astronaut Tom Stafford,
Cernan flew to the moon, went into lunar orbit and came within just 10 miles of
the moon's surface. Although Apollo 10 didn't land on the moon, its flight
marked the final "dress rehearsal" before NASA's first lunar landing two months
later in July 1969. Three years later, Cernan landed on the moon aboard Apollo 17.
This display case was funded in part by the Thiokol Corporation.