1975 US � Skylab 3 Commemorative Medal by Adlai S. Hardin (signed: A S HARDIN / � PAM 1975). Obverse: SKYLAB 3 CREW GERALD P CARR EDWARD G GIBSON WILLIAM R POGUE - Rendition of the Skylab as it is being worked on by a tethered astronaut. Reverse: SKYLAB CONCLUDES AN ERA OF SCIENTIFIC SPACE RESEARCH / NOV 16 1973 � FEB 8 1974 / EQUILIBRIUM STUDIES / ULTRA-VIOLET STAR STUDY / SLEEP MONITORING / CONTAMINATION MEASUREMENT / COMET KOHOUTEK � Five different vignettes depicting milestones of research. UNC, Bronze, 63.51 mm, plain smooth edge stamped AMI BRONZE.