COVER DATED 7 FEB 1992 - SIGNED. VERY SCARCE AND DIFFICULT TO OBTAIN COVERS AS THEY WERE PRODUCED IN SPECIAL COLLECTORS LIMITED EDITIONS. DON´T MISS THE CHANCE TO OWN ONE AS THEY ARE SELDOM SEEN IN AUCTION !!!
Operation Deep Freeze (OpDFrz or ODF) is the codename for a series of United States missions to Antarctica, beginning with "Operation Deep Freeze I" in 1955–56, followed by "Operation Deep Freeze II", "Operation Deep Freeze III", and so on. Given the continuing and constant US presence in Antarctica since that date, "Operation Deep Freeze" has come to be used as a general term for US operations in that continent, and in particular for the regular missions to resupply US Antarctic bases, coordinated by the United States military.
The impetus behind Operation Deep Freeze I was the International Geophysical Year 1957–58. IGY, as it was known, was a collaboration effort between forty nations to carry out earth science studies from the North Pole to the South Pole and at points in between. The United States, along with Great Britain, France, Japan, Norway, Chile, Argentina, and the U.S.S.R. agreed to go to the South Pole—the least explored area on Earth. Their goal was to advance world knowledge of Antarctic hydrography and weather systems, glacial movements, insect, animal and marine life. The U.S. Navy was charged with supporting the U.S. scientists for their portion of the IGY studies.
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