In conjunction with WWF organisation, Chile Post issued the 4 postage WWF stamp depicts 4 endangered species on 24 October 1984. The official FDC also issued on same date by Chile Post have pictured of those species and post marked with logo of WWF on the sealed stamps. The featured species are Arctocephalus philippii, Huemul or Hippocamelus bisulcus, chinchilla lanigera, and Balaenoptera musculus.
