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Short desc: Monitoring of the Antarctic Ozone Hole
Issuer: British Antarctic Territory Date: 3/30/1991 Occasion: unset Consists of 4 stamps: (See stamps as list) 12p d=Research Station Halley IV 26p d=Measuring Ozone 31p d=Ozone Hole Over Antarctica 62p d=NASA Aircraft ER-2 All are wmk=w384 Record of changes |
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