Four pieces of hardware associated with the JPL Mars Viking Orbiter/Lander, including: a Viking Orbiter sungate transfer assembly marked "V075"; two prototype pieces of a detector associated with the Viking Lander biology instrument pyrolytic release (PR) experiment; and a heavy metal structure associated with the Viking Orbiter Infrared Thermal Mapper experiment, with a Santa Barbara Research Center label identifying it as "Viking IRTM 953273, Model DTM." In overall very good to fine condition.