This cover was sent from Scott Base, research facility located at Pram Point on Ross Island near Mount Erebus. The research facility was named in honor of Captain Robert Falcon Scott, leader of two British expeditions to the Ross Sea area of Antarctica. The base was set up as support to field research and the center for research into earth sciences, and now conducts research in many fields, operated by Antarctica New Zealand. By road, the base is 3 kilometers from the larger U.S. McMurdo Station.
First two stamps on cover are from set Life in Antarctica, issued on 20.1.1982. Third stamp is Cape Adare, issued on 21.11.2012.
Thank you so much, Trevor!