4c. Lettercard with view of Santa Fe Avenue, used in Buenos Aires on 10/SE/1898, with datestamps on front: "ABONADOS" + "BUZONISTAS", inside printed order for Mendoza wine, opening defects
5c. Postal card sent from Buenos Aires to Germany on 2/JUN/1901, illustrated with portraits of presidents Gral. Roca and Dr. Campos Salles (of Argentina and Brazil respectively) on back, very nice!