1859 5c blue, pos.34, Stone B, left sheet margin example, tied by black manuscript cancel on outer 1860 (26 June) FL from Cucuta to Maracaibo, Venezuela, filing fold away from the stamp, v.f. An exceptional showpiece item, signed Buhler, with 2008 Moorhouse certificate (Cat No. 2var) (Image)

Est.US$5,000

1859 FL to Quito, Ecuador, franked with 10c orange red, full margins to just touching at bottom, tied by faint "Pasto.de.Oficio" cancel, filing fold well away from the stamp, fine. The contents of the letter date it to November/December 1859. A major South American rarity, as this is the only recorded First Issue usage to Ecuador, with 2008 Moorhouse certificate (Cat No. 4var) (Image)

Est.US$5,000

1859 10c ocher (shade), margins all around including adjoining stamp at right, tied by faint "S.Jose.de Cucuta.Franca" cancel on (Dec. 6) outer FL from Cucuta to Maracaibo, Venezuela, filing fold away from the stamp, v.f., with 2008 Moorhouse certificate (Cat No. 4var) (Image)

Est.US$2,500

1859 10c dull orange (shade), margins all around, tied by neat "La Mesa" manuscript cancel on outer FL to Bogota, filing fold and some staining away from the stamp, otherwise v.f., one of only three known covers from this correspondence, with 2008 Moorhouse certificate (Cat No. 4var) (Image)

Est.US$2,000

1859 10c orange yellow, horizontal pair, full margins all around, tied by blue oval "Santa Marta Franca" cancel on outer FL (8 Oct) to Medellin, filing fold away from the stamp, v.f. and important classic rarity, as this is the only known 10c First Issue pair on cover, signed Muller, with 2008 Moorhouse certificate, ex-Neuberger & Hubbard (Cat No. 4var) (Image)

Est.US$10,000

1860 10c yellow buff, stone A, top sheet margin block of eight, positions 6-9,16-19, unused with original gum, vertical fold between stamps, fine and rare multiple (Cat No. 11) (Image)

Est.US$750

1860 10c yellow, margins all around, tied by striking "Bogota" eye-glass cancel in black on FL (11 Oct) to Ambalema, filing fold away from the stamp and marginal fault at lower right well outside the design, otherwise v.f., with 2008 Moorhouse certificate, ex-Hubbard (Cat No. 11) (Image)

Est.US$5,000

1860 10c yellow, large margins all around, tied by oval "La Mesa Franca" cancel on blue on 1861 (25 Feb) FL to Bogota, some inconsequential marginal toning, v.f. and rare Colombian postal history item, with 1965 BPA and 2008 Moorhouse certificates (Cat No. 11) (Image)

Est.US$5,000

1860 10c yellow buff, stone A, position 31, featuring diagonal dash (6mm) at lower left side, large equal margins, tied to cover to Ambalema by "Bogota" eye-glass oval handstamp, paying the single weight for a distance between 50 and 150km. Only about ten genuine covers recorded bearing this stamp, with Bortfeldt and Moorhouse certificates, ex-Goeggel (Cat No. 11) (Image)

Est.US$2,500

1860 10c yellow buff, stone B, block of four, unused with original gum, positions 2-3 / 12-13, including position 12, which was the inverted position in the stone B and subsequently substituted in this second stone; also showing "20" instead of "10" below the shield in position 3, being a variety which had not been reported before 2013, and with at most only five examples recorded; (stated by the late Dieter Bortfeldt to be a retouch), ex-Goeggel, with Bortfeldt certificate ("This can now be classified as one of the great items of classic Colombian Philately. Having checked a wide range of reference material available, we can state that no more that 3 stamps unused and in blocks exist") (Cat No. 11var) (Image)

Est.US$1,000

1860 (2 Sep) outer FL from Bogota to Ambalema, franked with 20c blue, three large margins including part of adjoining stamp at top, just touching at bottom, tied by oval Bogota eye-glass cancel, with red sender's cachet at upper left, filing fold away from the stamp, fine and rare cover, with 2008 Moorhouse certificate, ex-Hubbard (Cat No. 12) (Image)

Est.US$5,000

1861 undated outer FL from Salinas to Bogota, franked with New Granada 5c pale yellow horizontal pair, margins all around, canceled "Chita Franca" in black (Salinas and Chita are the same location), with sender's wax seal showing the origin (Salinas), filing folds and cover flaws away from the stamps, v.f., one of only four covers known from this correspondence and the only franked with pair of 5 cents and the remarkable "Chita" cancel, with 2008 Moorhouse certificate "acknowledged as one of the finest of the few known 'New Granada' covers", ex-Londono (Cat No. 14) (Image)

Est.US$7,500

1862 50c red instead of 20c red, error of transfer, type II, good balanced margins all around, featuring a very fresh impression, canceled by ink stroke leaving the error clear, very rare and desirable variety, ex-Hubbard, cat. $2500 (Cat No. 26b) (Image)

Cat. $2500, Est.US$2,000

1920 10c "Clouds and Biplane", canceled on 22 February cover of the First Flight from Cartagena to Barranquilla, tied by C.C.N.A. oval datestamp on departure, with National Post 3c alongside tied by "Correo Aereo./Cartagena-Colombia." cds, usual horizontal filing crease away from the stamp, minor toned specks, otherwise v.f., one of the finest of just 11 covers known from this flight, Bortfeldt certificate (Cat No. C3) (Image)

Est.US$2,500

1921 "Vaolr 10 Centavos" on 50c pale green, featuring "Vaolr" variety, used on cover to Neiva (Behr-Heyder mail), tied by Scadta double oval handstamp of Girardot, additionally franked with 1/2c (2) and 2c tied by Scadta double oval of Girardot, paying the national postage, tied by Neiva duplex datestamp, v.f., with Diena certificate. One of nine covers recorded (Colomphil 4) (Cat No. C19var) (Image)

Est.US$500

1921 "Valor 30 Centavos" on 50c pale green, canceled by Scadta oval handstamp of Cartagena on commercial cover to Medellin, additionally franked for postage with 3c, both adhesives tied by 16 December framed datestamp on arrival, horizontal filing fold away from the stamps (Colomphil 20) (Cat No. C20) (Image)

Est.US$500

1921 "VALOR 30 CENTAVOS" on 50c pale green, type 21, not showing the usual paper folds for this type, applied on Behr-Heyder envelope to Bogota, canceled by Scadta three-line and "El Agente/Manuel Jose Tobon" two-line handstamps of Medellin, with National Post 1/2c (4) and 1c tied by 10 November datestamp, also on dispatch (Colomphil 21) (Cat No. C20) (Image)

Est.US$500

1921 "VALOR $0.10", red typewritten surcharge on marginal 50c pale green, used on Behr-Heyder envelope to Bogota, tied at Neiva and Girardot by Scadta Agency cancels, and postage paid with 1/2c pair and 2c cancelled by receiving postmark dated 16 November. Only nine covers recorded (Colomphil 5) cat. $2000 (Cat No. C24A) (Image)

Cat. $2000, Est.US$750

1921 "VALOR $0.10", violet typewritten surcharge on 50c pale green, vertical strip of three overpaying a Behr-Heyder envelope addressed to Bogota, each canceled by Scadta three-line of Medellin and "El Agente/Manuel Jose Tobon" two-line handstamps in violet, with postage being paid by 1/2c pair and 2c, tied by 10 November framed datestamp on dispatch (Colomphil 5) (catalogued as three used singles) cat. $4500 (Cat No. C24A) (Image)

Cat. $4500, Est.US$1,000