Large cover with views and maps of the Orkney islands, prepared by "Centro Filatélico de Mar del Plata", with postmark of 2/FE/1942, first airmail of the islands, several signatures, very nice
Cover with illustrated cachet (map of ISLAS ORCADAS islands), datestamped 22/FE/1962, with a number of marks on front and back, signed by the physician and commarder of the base