GJ.217, Pair ½c. Liberty franking a cover with PRINTER MATTER used in Buenos Aires on 30/DE/1905 and returned to sender. Scarce rate of 1c., very fine quality! (Image)

GJ.217, ½c. Seated Liberty in BLOCK OF 4 franking a cover with rate for printed matter (2c.) used locally in Buenos Aires on 29/SE/1904, VF and scarce! (Image)

RARE IMPERFORATE POSTAGE: GJ.222P, 5c. Seated Liberty IMPERFORATE franking a cover sent from Olivos to Buenos Aires on 4/FE/1905, VF and very rare! (Image)

GREAT RARITY: GJ.227PV, 15c. Seated Liberty in pair IMPERFORATE VERTICALLY + strips of 3 of values 2c. and 5c., also imperforate vertically, franking a registered cover used in Buenos Aires on 8/NO/1906. The 15c. pair is very rare and much more on cover (only 2 or 3 known), excellent quality! (Image)

Maximum card of the year 1959: Airport and plane taking off, VF quality! (Image)

RARE VARIETY ON COVER: Sc.313, 1925 Tero southern lapwing 5c. with printer imprint "Imprenta Nacional" with very notable variety COMPLETE DOUBLE IMPRESSION, franking a NON-philatelic cover sent to Buenos Aires on 28/JUN/1927, VF and rare! (Image)

Yvert 549/553, 1950 World Chess Championship, the set of 5 values on maximum cards, VF quality! (Image)