1831 unpaid FL from Buenos Aires to London, framed "Oz dt 14 S/perf. Oz" exchange mark, per "Packet Calypso" and "F.P.O. Au 10, 1831" pmk on back, filing folds away from the markings (Image)

Est.US$250

1869 two unfranked covers and FL from Buenos Aires to Hannover, French Packet No.1 and two different exchange marks, one oval "FR.2F20c", the other "F.42" (applied by error and crossed out by blue crayon) and "F.48", each via Bordeaux, with various due markings, charged "19 1/2" (decimes) in blue crayon, "Per Aachen England" and Asendorf arrival pmks on back. Also included 1876 cover from Buenos Aires to St. Gallen, octagonal French Packet N No.1, triangular "T", charged "80" in blue crayon (Image)

Est.US$500

1874 (Jan) cover franked with 5c Rivadavia, used from Buenos Aires to Mecklenburg-Strelitz, Germany, "S.S. Buenos Aires" and handstamped "UNPAID", red Ship Letter London, Verviers-Coeln distribution and arrival pmks on back, charged "9 1/2" in blue crayon (Image)

Est.US$150

1876 (20 May) cover with single 5c Rivadavia, tied by Buenos Aires departure cds, addressed to Italy, charged "80" in blue hs, paying 1.40 Lire Postage due (Penalty rate) with 40c (2) and 60c numerals, French entry pmk on red and additional charge markings applied there, fine cover with Torino transits and arrival pmks (Image)

Est.US$150

1880 (25 Jan) FL from Buenos Aires to Bordeaux, franked with 16c rouletted Rivadavia, ship endorsement and red "Rep. Arg. Bordeaux" French entry pmk, fine (Image)

Est.US$150

1880 (18 Aug) cover from Buenos Aires to Vienna, franked with 2x8c rouletted, tied by cds, with red "Repub. Arg" entry pmk, Italian ("Ambu. Marseglia-Genova") and Wien (16.9.80) arrival pmks on back, fine cover, signed Buhler (Image)

Est.US$150

1881 (9 Sep) cover from Buenos Aires to Bordeaux, franked with 2c and 10c green, tied by departure pmks, with French packet alongside, "Per Congo", with "T" and "7" charged on arrival, minor cover faults at top away from the stamps, Bordeaux (5 Oct) arrival (Image)

Est.US$200

1910 Centenary of the Republic, bicolor trial color proofs on wove paper, complete set, fine-v.f. (Cat No. 160-75P) (Image)

Est.US$150

1855 (25 June) FL addressed to the Rothschild firm in Paris, with oval "Trieste" departure, "Austria" straight-line hs alongside, "8" (grams) and "25" (decimes) manuscript charge margins, French entry in red and Paris arrival pmk on back (Image)

Est.US$150

1921 three bank letters from Vienna to Zurich, each originally containing banknotes, franked with 5x20kr, plus additional stamps, mostly intact wax seals and arrival pmks on back, some faults, impressive trio of money letters (Cat No. 222/226) (Image)

Est.US$500

1957 1s "Mariazell", lower right sheet corner margin single, imperf. at bottom and at right (except for one errant perf. hole), n.h., v.f. (ANK 1044var) (Cat No. 620var) (Image)

Est.US$150

1960 Anton Eiselberg, 1.50s perforated and gummed proof sheetlet, some marginal incisions, h.r., fine and rare (ANK 1159P, Euro 1,300) (Cat No. 653P) (Image)

Est.US$250

1918 set of three, 2k, 3k, 4k without overprint, n.h., v.f. (ANK 225-227P, Euro 1,500) (Cat No. C1-3var) (Image)

Est.US$500

1918 10kr red brown, imperforate bottom sheet margin single without surcharge, unused without gum, folded at bottom margin, v.f. (ANK Euro 1,350) (Image)

Est.US$500

1931-33 Rotary Congress, complete set used on registered coverfront addressed to Berlin; also FIS set of four used on registered cover from Innsbruck to Vienna, special International Ski Federation cancels and labels, fine-v.f. (Cat No. B87-92,106-109) (Image)

Est.US$200

1933 WIPA souvenir sheet of four, l.h. in margin as usual, stamps n.h., v.f., cat. $2500 (Cat No. B111) (Image)

Cat. $2500, Est.US$650

1933 Catholic Congress, complete set tied by 12.9.33 (Last Day of Congress) cds on unaddressed cover, also Air Post 1935 Issue, complete set of 15, used on both sides of registered and flown cover from Vienna (27.5.38) to England, fine-v.f. (Cat No. B112-17,C32-46) (Image)

Est.US$250

1947 Medicinal Flowers, 1.40s+70g imperf. and gummed proof sheetlet, dated "13 Nov 1947", v.f., rare (Cat No. B244P) (Image)

Est.US$250

1867 (25 Sep) outer FL to Syra, franked with pair of Lombardy-Venetia 10sld perf. 9 1/2, tied by Candia departure cds, marked "40" and franked on arrival with 40L mauve on blue, tied by Syra (13 Sep) pmk on arrival, filing fold away from the stamps, fine cover from Crete to Greece (Image)

Est.US$200

1896-1914 six registered covers or cards from Canea (one from Rethymnon) to Germany, Italy and France, the latter with 2x10sld Arms, also coverfront with six Franz Josef adhesives and piece, with two surcharges, plus "Candia Osterr.Post" parcel receipt (Image)

Est.US$250

1867 5c green, irregular block of 19, positions indicated, four with incomplete "A" in "Centavos", v.f. (Cat No. 2b) (Image)

Est.US$150

1878 unpaid cover sent from La Paz to Paris, "T 1-70" exchange mark, red French entry and charged "22" (decimes) on arrival, showing "Callao" and London transit pmks on black, Paris (14 July) arrival (Image)

Est.US$250

1870-79 two Military Telegram forms, one from Ragusa to Neum, handstamped "Castelnuovo", the other Trieste, addressed "Sansego", each with K.u.K. Telegraph labels (torn on opening), bearing "K.K. Kriegs Marine", very rare (Image)

Est.US$500

1915 registered cover franked with six different varieties of surcharge, including double and inverted, all canceled by Sarajevo departure pmks, address obliterated by pen, with "K.u.K Milit Post in Telegrafen-Direktion Sarajevo" handstamp alongside, fine and colorful cover (Cat No. B3-6var) (Image)

Est.US$150

1915 12h on 10h red, horizontal strip of three, middle stamp "7 Heller" variety, right stamp type III, canceled by 1.XII.15 cds on Brezovo Polje cds on cover, v.f. (Cat No. B6,6a,6c) (Image)

Est.US$150