ARGENTINA: 632,667: Three different ANTARCTIC TOURIST SHIP VISIT covers, #667 40c Liberty, rose carmine, with ‘Les Eclaireurs’ handstamp cachet cover neatly sliced open to show front and four Antarctic base handstamps, #632 50c Buenos Aires harbor, engraved, blue with 1959 F.A.N.U. handstamp cachet with three Antarctic base handstamps and 1958 post card with ‘Les Eclaireurs’ handstamp cachet and five Antarctic base handstamps, clean and f-vf (Image)