Sc.C6, 1924 20c. green, complete sheet of 25 examples, very fine quality, very rare! (Image)

Lot of classic stamps, most with defects (some of fine quality), including a good range of colors, Scott catalog value US$800+ (Image)

Lot of classic and old stamps, fine general quality, good opportunity at low start! (Image)

Interesting lot of old stamps, most of fine quality, good opportunity! (Image)

Lot of good stamps and souvenir sheets, almost all mint, most of fine to VF quality, low start! (Image)

Cover sent to Brazil on 20/MAR/1920, franked by Sc.O126 with two clover punch holes, postmarked "EXPEDICIÓN OFICIAL - SERVICIO NOCTURNO", with several transit and arrival backstamps, VF, rare! (Image)

Cover sent to Brazil on 21/AP/1920, franked by Sc.O126 with two clover punch holes, VF quality! (Image)

Large fragment of parcel post cover sent to Belgium, franked by Sc.O127 with two star punch holes, VF! (Image)

Cover of the Post of Uruguay sent to Bolivia on 20/JA/1923, franked by 3 examples Sc.O126 with 2 clover punch holes each, with several postal markings, VF quality, rare destination! (Image)

Registered cover of the Ministry of Foreign Affairs sent to Brazil on 7/AU/1923, franked by Sc.O120 x2 + O125, all with two star-shapped punch holes each, rare combination of two different issues! (Image)

Registered cover of the Presidency of the Republic sent to Paraguay on 13/DE/1923, franked by Sc.O126 x3 (one with defect) with two star punch holes each, rare destination, very nice! (Image)

Registered official cover sent to Buenos Aires on 1/AP/1924, franked by Sc.O126 with two clover punch holes each, fine quality, rare! (Image)

Cover sent by the Embassy of Bolivia in Montevideo to Argentina on 20/SE/1926, stampless, with blue handstamp "Diplomatic correspondence - Panamerican postal franchise", backstamped "OFICIAL Y PRENSA", VF! (Image)

Card of the Museum of Natural History sent to USA on 26/DE/1927, franked by Sc.O140 with star-shapped punch hole, VF quality! (Image)

Wrapper of the School of Medicine sent to Buenos Aires, franked by pair Sc.O147 with a clover punch hole each, VF quality! (Image)

Postcard sent by the Embassy of Brazil to Rio de Janeiro on 10/JA/1930, franked with regular mail stamp Sc.334 with a star punch hole, fine quality, very rare alone on cover! (Image)

Cover of the Post of Uruguay sent to Buenos Aires on 4/AU/1930, franked by a regular mail stamp Sc.304 with a clover punch hole, fine quality, rare! (Image)

Card of the Department of Agronomy of the University of the Republic, sent stampless to England on 14/MAR/1932, datestamped "SUC. A - MONTEVIDEO", fine quality! (Image)

Cover of the Ministry of Foreign Affairs sent to Argentina on 31/AU/1933 with marking "Correspondencia Oficial - Franquicia Postal Panmericana", and meter postage of 7c. along "OFICIAL Y PRENSA", VF quality! (Image)

Year 1911, 8c. slate, 103 used examples with different types of punch holes. Some examples are WATERMARKED, very interesting lot to study, VF quality! (Image)

Year 1911, 23c. brownish lilac, 44 used examples with different types of punch holes. Some examples are WATERMARKED, very interesting lot to study, VF quality! (Image)

Issue of 1911, 3 examples of 50c. and 5 of 1P. mint and of VF quality, high values of the set! (Image)

Year 1911, 1P. vermilion, IMPERFORATE PAIR, VF quality! (Image)

Issue of 1918, lot of used stamps including a 1P. block of 6, and blocks of 4 of 5c. and 8c., several pairs, etc. Very fine quality! (Image)

1925, Congress, 2 examples of 5c. and 17 of 12c., all used and punched with clover- (most) and star-shaped holes, VF quality! (Image)