1864 3c brown, without overprint, unused with original gum, h.r., margins all around, close but clear at bottom, good color, fine stamp, with 1998 MEPSI certificate, cat. $700 (Cat No. 18a) (Image)

Cat. $700, Est.US$250

1913 Sonora White Issue, 1c, 2c and 10c, used on combination with 3c black & green and imperforate 5c Ejercito on registered cover from Hermosillo, 4 January 1913 (wrong year-date, the postal clerk at Hermosillo failed to change the date to 1914) to Lyon, France, with Nogales and New York transit, Lyon arrival pmks on back, fine and unusual cover to a foreign destination during the Mexico Revolution (Image)

Est.US$500

1913 (31 Dec) registered cover from Nogales to Hermosillo, paying 20c Registered letter rate with 1c, 2c and 10c, used in combination with 2x1c Ejercito green, tied by cds, with violet Servicio Interior/Nogales and Certificato/Hermosillo pmks on back (Cat No. 322,323,327,347) (Image)

Est.US$250

1913 (8 Aug) cover from Magdalena to Nogales, franked with 1c and 2c used in combination with Sonora Green seal 1c (2), v.f., with arrival pmk (Cat No. 322,323,336) (Image)

Est.US$250

1913 (30 June) cover from Sonora to Nogales, paying 5c letter rate with pair of 1c and single 3c, tied by cds, v.f., with arrival pmk (Cat No. 322,325) (Image)

Est.US$150

1913 (11 Aug) cover from Hermosillo to Magdalena, paying 5c letter rate with single 1c and two different types of 2c, faint toning, otherwise fine, with arrival pmk (Cat No. 322-324) (Image)

Est.US$150

1913 Sonora Issue, 2c and 3c black & red, both Type I, Position D, paying 5c letter rate on cover from Hermosillo, July 1, 1913 to Nogales, fine commercial cover, with 2 July arrival pmk (Cat No. 323,325) (Image)

Est.US$250

1913 Sonora Issue, 2c black & red used in combination with 3c white & green seal issue, paying 5c letter rate on cover from URES to Hermosillo, 5 September departure and 8 September arrival pmks, cover wear and filing folds away from the stamps, scarce commercial usage of mixed franking (Cat No. 323,337) (Image)

Est.US$250

1913 Sonora White Issue with Colorless Roulette, 5c black and red, narrow numeral "5" type II, complete sheet of ten, unused without gum as issued, minor perf. separations, v.f. Five intact sheets were recorded in 1921. One of these sheets has been broken up, which accounts for most of the unused examples in the hands of collectors. Another sheet has been lost (ex-Bauer collection) and one is in the Smithsonian Museum. The sheet offered here is one of only two known sheets in private hands (catalogued as singles), cat. $12000 (Cat No. 327) (Image)

Cat. $12000, Est.US$5,000

1913 (20 June) cover franked with single 5c type II (pos.C), used from Magdalena to Cumeral, Sonora, filing fold away from the stamp, fine and scarce single franking on cover (Cat No. 327) (Image)

Est.US$250

1913 Sonora Issue, 5c black & red, Type II, single franking on cover from Ures, 21 July 1913 to Nogales, with 23 July arrival pmk (catalogued as used off cover) cat. $350 (Cat No. 327) (Image)

Cat. $350, Est.US$250

1913 Sonora Issue, 5c black & red, Type II, position E (red dot in O of right CENTAVOS), single franking on cover from POZA.EST, 9 September to Hermosillo, part of arrival pmk on back, very late usage of the Sonora white (catalogued as used off cover) cat. $350 (Cat No. 327) (Image)

Cat. $350, Est.US$250

1913 Sonora White Issue with Black Roulette, 5c black and red, complete sheet of ten, positions A and B showing "MARO" for "MARZO" errors, complete paper maker's "YUKON AURORA" watermark in the gutter and on two stamps, unused without gum as issued, v.f. Follansbee's "Stamps of Mexican Revolution 1913-1916" states fewer than 3 intact sheets are known. The sheet offered here is the only recorded so-far, with the "Yukon Aurora" watermark (catalogued as singles), cat. $6800 (Cat No. 329,329a,329b) (Image)

Cat. $6800, Est.US$2,500

1913 Sonora Issue, 5c black and red, without gum as issued, v.f., with 2012 MEPSI certificate, cat. $750 (Cat No. 338) (Image)

Cat. $750, Est.US$300

1913 Sonora Green Seal Issue, colorless roulettes, 5c black & green, used on cover (slightly reduced at left) from Hermosillo, 22 July 1913 to Ures, with arrival pmk the next day, backflap defects, otherwise fine, only 200-250 of 5c issued, few on cover (Cat No. 338) (Image)

Est.US$250

1914 "Viezca" Local handstamped overprint on 5c orange, used on registered cover (October 2014) to Torreon, with partial black label, carelessly opened, backflap missing, "No Reclamada" handstamp, transit and arrival pmks, rare usage, only 8 covers with VIEZCA 5c stamp have been recorded (Image)

Est.US$500

1914 Transitorio Issue, 5c green, imperforate horizontal strip of four canceled 14 July 1914 on unaddressed George Ward Linn (printer) cover, v.f. (Cat No. 357var) (Image)

Est.US$150

1914 (22 July) Chinese merchant mail, cover with diagonal half of 10c used as 5c from Nogales to Magdalena, with arrival pmk on back, v.f. usage of Transitorio bisect (authorized usage period July 16-29, 1914) (Cat No. 358var) (Image)

Est.US$250

1914 Transitorio, 50c claret, top sheet margin block of four, imperforate vertically, bottom pair n.h., v.f., ex-Hind, with 2013 MEPSI certificate (catalogued as hinged pairs) cat. $500 (Cat No. 360a) (Image)

Cat. $500, Est.US$250

1914 20c yellow brown, h.r., usual tropical gum, otherwise fine, with 1980 MEPSI certificate, cat. $2500 (Cat No. 367) (Image)

Cat. $2500, Est.US$750

1914 Transitorio 20c yellow brown "Victoria de TORREON April 2 1914" overprint, usual centering for this (Scott prices it with design close to or touching the perfs), strong color, n.h., fine, with 2011 MEPSI certificate. Only 50 issued (catalogued as hinged) cat. $2500 (Cat No. 367) (Image)

Cat. $2500, Est.US$1,000

1914 Transitorio 20c yellow brown "Victoria de TORREON April 2 1914" overprint, well centered for this issue (Scott prices it with design close to or touching the perfs), with complete offset of the overprint on back, strong color, v.f. for this difficult stamp, with 1981 MEPSI certificate. Only 50 issued (catalogued as regular overprint) cat. $2500 (Cat No. 367var) (Image)

Cat. $2500, Est.US$1,000

1914 Sonora Issue, 20c yellow & green, tied by Nogales 21 Oct. 1915 cds on cover to Hermosillo, stamp with closed tear at top, fine and rare usage, with arrival pmk, 2015 MEPSI certificate (Cat No. 409) (Image)

Est.US$250

1914 15c lavender and claret, left margin block of four, h.r., few perf. separations, fine-v.f., with 2011 MEPSI certificate (catalogue value for singles) cat. $1000 (Cat No. 421) (Image)

Cat. $1000, Est.US$500

1914 15c lavender and claret, block of four, right stamps with "Gons" variety, n.h., v.f., signed Bloch, with 1983 MEPSI certificate (catalogue value for ordinary singles) cat. $2800 (Cat No. 421,var) (Image)

Cat. $2800, Est.US$1,500