2 Covers sent from Peking to Argentina in 1957 and 1967, without postage and with "Taxe Perçue" marks, the former with its original content, a New Year card of Radio Peking, VF! (Image)

Aerogram sent from Shanghai to Argentina on 12/AU/1958 with very attractive multicolor postage on front and back, very interesting, unusual destination! (Image)

Airmail cover sent from Shanghai to Argentina on 18/AP/1959 with attractive multicolor postage including Sc.242 + 330/333 + other values, unusual destination, very nice! (Image)

Airmail cover sent from Peking to Argentina on 8/SE/1962, franked by Sc.625 + another stamp, excellent quality! (Image)

Cover franked by Sc.961 strip of 3, sent from Peking to Argentina on 5/JUL/1967, VF quality, rare! (Image)