GJ.2396/99, on cover sent from La Cruz (Córdoba) to the Falkland islands/Malvinas, with special postmark of National Championship of Model Airplanes 21-24/MAY/88, returned to sender, on back Declaración Conjunta and Buenos Aires arrival 16/JUN, VF
GJ.1819/23, on cover sent to the Falkland Islands/Malvinas, first day postmark of 12/AU/78, on front Declaración Conjunta mark of the same day and Port Stanley arrival backstamp of 17/AU, returned to sender, also Declaración Conjunta mark of 21/AU, Abonados, and Poste Restante of 22/AU on back, VF
GJ.2514/18, on cover sent to Falkland Islands/Malvinas, first day postmark of 27/OC/90, with Declaración Conjunta mark of 30/OC, returned to sender, with Buenos Aires arrival backstamp of 22/JA/91, VF
