Australian ANTARCTIC TERRITORY: 2013=2014 Mountains set of 4 stamps in 3 blocks of 4  with the 4 different Bases first day covers. Original cost $61.20. High retail $150.00. Going cheap. Multiple items will be combine in to one postage where possible.  Always contact me first if you are not satisfied or if you have any question to ask about the item(s). Good luck and thank you.