This is a replica of the makeshift golf club that NASA astronaut Alan B. Shepard Jr. used to hit two golf balls on the Moon during Apollo 14 in February 1971. Shepard carried the modified Wilson six-iron in his spacesuit pocket, afixing the club head to the handle of a contingency sample return device. After the flight, Shepard gave the original club head to the US Golf Association Hall of Fame in New Jersey and this replica to the National Collection in 1975.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.