First day cover. Falkland Island: Stanley. Island series part 4. Cachet: map of Sea Lion Island. Four stamps: dog orchid; king cormorant; magellanic penguin; Sea Lion Lodge. Includes informational insert. 15 September 2004.
First day cover. Falkland Islands: Stanley. Breeding owls of the Falkland Islands. Cachet: barn owl chick. Four stamps: short-eared owl; barn owl. Includes informational insert. 25 October 2004.
First day cover. South Georgia and the South Sandwich Islands. Juvenile fauna definitive. Cachet: southern elephant seal pup. Twelve stamps: Antarctic prion; humpback whale; South Georgia pintail; Weddell seal; king penguin; southern right whale;…
First day cover. South Georgia and the South Sandwich Islands. Merchant ships. Cachet: red ensign. Four stamps: RMS QE2; MS Endeavour; MS Lindblad Explorer; SS Canberra. Includes informational insert. 10 November 2004.
First day cover. British Antarctic Territory: Lockroy. Cachet: climate change. Six stamps: annual temperature trends since 1950; ice core data; Larsen Ice Shelf; ice core drilling. 9 December 2004.