8c. Cover (PS) sent from PARANÁ to "Fonda Francesa"(PARAGUAY) on 13/JA/1887, and returned to sender "because the addressee passed away", Buenos Aires and Asunción transit marks, VF, extremely rare destination! (Image)

Registered cover sent to B.Aires on 7/JUL/1933, franked with 30c. (strip x3 10c. San Martín without period) with unusual violet oval cancels of CASILDA (Santa Fe), arrival backstamp, excellent! (Image)

RARE CANCEL: Official envelope of the Post sent to Buenos Aires without postage on 14/JUL/1939, with datestamp of "CINTRA" (Córdoba) perfectly applied, excellent! (Image)

21/MAY/1930 Buenos Aires - Germany, cover sent by Zeppelin on its first flight to South America, with handsome multicolor postage including several stamps of the issue commemrating this event, with blue overprint, and Friedrichshafen arrival backstamp, very nice! (Image)