RARE POSTAGE: Mourning cover sent by registered mail from Buenos Aires to Montevideo on 18/MAY/1878 with spectacular postage of 39c. combining perforated and rouletted stamps, very fine quality, rare, with Rodolfo Kneitschel certificate (Image)

Wrapper with printed inscription "MUESTRAS SIN VALOR" partially covered by 4c. postage, sent from Buenos Aires to England on 5/DE/1894, very fine quality, rare rate! (Image)

Certificate issued by "Mensajería Provincial de los Departamentos del Oeste (Córdoba)" for 4 round trips in the month of October, dated 5/NO/1897 and cancel of LA HIGUERA, excellent! (Image)

1c. Wrapper sent to Chacabuco, with rare mark "ESTACION CENTRAL RELEVANTE - 6" of 9/MAY/1903, excellent quality! (Image)

5c. Stationery envelope + 10c. Seated Liberty, sent from Buenos Aires to GREECE on 4/AU/1904, with octagonal mark of French steamer and 3 Greek receiving cancels on back, VF quality, rare destination! (Image)

Cover sent form Buenos Aires to France on 31/OC/1914 by steamer "Fladre", franked with 13c. with octagonal cancels "BUENOS AYRES - BORDEAUX - L.J.Nº4" and several French transit marks on front and back, excellent quality, rare, ex-Loeb (price US$350) (Image)

Registered cover with corner card of "Gran Hotel de Juan Galceran" sent from GENERAL PICO (Pampa Central) to Buenos Aires franked with 17c., VF! (Image)

2 Registered covers sent from GOYA to CHAVARRÍA (both in Corrientes) on 3 and 15/MAY/1923 franked with 20c., with rare arrival backstamps, VF! (Image)

8 Despatch notes of the year 1952, all with attractive official stamps on back, rare group! (Image)

HYPERINFLATION: Cover sent from Alejandra (Santa Fe) to Buenos Aires on 9/AP/1984, with spectacular MIXED $20,000 (GJ.2027 x50) + $a0.50 (GJ.2104), rare combination of currencies, fantastic! (Image)