Folded cover dated 31/DE/1869 sent from Montevideo to Buenos Aires by steamer "Río de la Plata" franked with 20c. (Sc.30 x2 + 31), excellent and rare! (Image)

3c. Lettercard uprated with 7c. (Sc.89), sent from Montevideo to Germany on 15/JUN/1889, with arrival mark of 15/JUL, excellent quality, signed by Diaz on front and back, ex-Loeb (its selling price was US$500) (Image)

RARE DESTINATION: Registered cover sent from Montevideo to GREECE on 23/AU/1893 franked with 20c. (Sc.86 alone), transit and arrival backstamps, very fine quality! (Image)

Registered mourning cover with AR sent from Montevideo to Buenos Aires on 6/AP/1894 franked with 20c., arrival backstamp, very fine quality! (Image)

3c. Lettercard sent from "Chamiro"? to Estación La Lata on 28/AU/1901, with semi-mute "I-24" cancel in barred oval + datestamp "ESTAFETA AMBULANTE - A61", transit backstamp of Montevideo 28/AU, VF and interesting! (Image)

Registered cover with AR sent from Salto to Italy in AP/1907 franked with 25c., arrival mark of Roma 18/MAY, excellent quality! (Image)

Registered cover sent from Montevideo to USA on 3/MAY/1907 franked with 25c., very fine quality! (Image)

Registered cover sent from Montevideo to Germany on 26/AU/1909 franked with 35c., very fine quality! (Image)

ONE OF THE RAREST FLIGHTS OF THE WORLD: 3/SE/1912 Salto - Montevideo, flight made by Italian aviator Cattaneo, cover franked with 5c. with special mark of the flight, cancelled in Salto on 23/AU, very fine quality, extremely rare (only 12 covers are known!). With certificate of the Uruguayan Philatelic Federation signed Cesar Jones. (Image)

12/NO/1921 Montevideo - Mercedes, Brunet flight, arrival backstamp 13/NO, fine quality, rare! (Image)

22/JA/1923 Montevideo - Buenos Aires, Kingsley flight, arrival backstamp, VF (Image)

13 Covers, cards and cover fronts flown between 1924 and 1938, very fine general quality, good opportunity! (Image)

1/MAR/1926 and later dates, Montevideo - Buenos Aires, 7 airmail covers carried by "Misión Junkers" in several days including the first flight and the second flight of 3/MAR, very fine quality, interesting lot! (Image)

1/MAR/1926 Montevideo - Buenos Aires, first flight of "Misión Junkers", registered cover with special red mark and arrival backstamp 1/MAR, VF quality! (Image)

3/MAR/1926 Montevideo - Buenos Aires, second flight of "Misión Junkers", registered cover with special red mark and arrival backstamp 1/MAR, VF quality! (Image)

10/MAR/1926 Montevideo - Buenos Aires, flight of "Misión Junkers", registered cover with special red mark and arrival backstamp 10/MAR, VF quality! (Image)

15/MAR/1926 First flight Montevideo - Rocha - Montevideo, registered cover with special handstamp of the flight, and arrival backstamp of Rocha 15/MAR and Montevideo 16/MAR, VF quality! (Image)

17/MAR/1926 Rocha - Montevideo, airmail cover carried on second flight (first flight was on 15/MAR), on back it bears arrival mark and Rocha datestamp, interesting! (Image)

1/OC/1926 Montevideo - Buenos Aires, flight of "Misión Junkers", registered cover with special red mark and arrival backstamp 1/OC, VF quality! (Image)

25/NO/1927 Montevideo - Buenos Aires, registered airmail cover, arrival backstamp 28/NO, very fine quality, interesting! (Image)

2 Registered airmail covers sent from Montevideo to B.Aires in 1930 and 1933 by C.G.A., very fine quality! (Image)

19/FE/1930 Montevideo - New York, airmail cover carried on NYRBA first flight via the Atlantic, VF quality! (Image)

20/MAY/1930 Montevideo - New York, card flown by Zeppelin, with several marks and Lakehurst arrival on back, very fine quality! (Image)

8/JUN/1930 Montevideo - France, airmail cover, Mermoz first test, arrival backstamp of 10/JUN, very fine quality! (Image)

25/AU/1930 Montevideo - Melo, airmail of the Centenary, registered cover franked with 1P., VF quality (Image)