Flown Klixon toggle switch removed from the Apollo 16 Command Module Casper after its historic 1972 flight to the moon. The switch measures approximately 1.25 x 2.25 x .5, and is engraved on the side with part numbers: “NAA/S & ID No, ME452-0102-4101, Serial No. 057750016840, Mfr P/N III_S4 I-B, Mfr Klixon R.” Retains the original North American Rockwell Space Division temporary parts removal tag, appropriately identifying the CM as “S/C 113.”