Cover used in 1939, franked with pair 5c. Moreno typographed on chalky paper, with "DPN" perfin of Dirección de Parques Nacionales, VF! (Image)

Circa 1940, cover franked with ½c. Belgrano with "QB" perfin of Química Bayer, VF! (Image)

Cover used in 1942, franked with 40c., all the stamps with "WBC" perfin of Wattine Bossut & Cía, VF quality! (Image)

Cover used in 1944, franked with 5c. Moreno on chalky paper, with "AA" perfin of Acme Agency, VF! (Image)

Cover sent to Brazil in 1953 franked with 3.40P. Eva Perón, all the stamps with "BNA" perfin of Banco de la Nación Argentina, VF! (Image)

Cover used in 1953, franked with 1.50P. with "SUDAM" perfin of Cia. Sudamericana de Servicios Públicos S.A., VF! (Image)

Cover used in 1955 franked with 4P. San Martín with "SH" perfin of Sanz Hnos., VF quality! (Image)

Cover used in 1956, franked with 20c. San Martín with "S.1" perfin of Swift co., VF quality! (Image)

Cover used in 1958, franked with 40c. San Martín with "LB" perfin of Sociedad Metalúrgica La Belga, VF! (Image)

Cover used in 1959, franked with pair of 1P. Cattle with "Q" perfin of Quilmes brewery, scarce! (Image)

Group of used stamps with interesting PERFINS, most of fine to very fine quality, including some very scarce examples, good opportunity! (Image)

Group of used stamps with interesting PERFINS, most of fine to very fine quality, including some very scarce examples, good opportunity! (Image)

Group of used stamps with interesting PERFINS, most of fine to very fine quality, including some very scarce examples, good opportunity! (Image)