1862 30c vermilion, l.h., fresh color, short perf. at left, otherwise fine, with 1999 Guinand certificate, cat. $1850 (Cat No. 46) (Image)

Cat. $1850, Est.US$200

1909 unexploded 3fr booklet (12x25rp Tell), blue covers with black text, stapled at left, v.f., cat. $650 (Cat No. SBK 7) (Image)

Cat. $650, Est.US$400

1913 Forerunners, eleven different, unused, l.h. or h.r., some disturbed gum, mostly fine or better, cat. $4455 (Cat No. Zu.I-VII, X,Xa,XI) (Image)

Cat. $4455, Est.US$1,500

1913 Forerunners, Lugano, 25c green & red, h.r., well centered, minute thin speck, fine example of this rarity, with 2017 Marchand certificate, cat. $4000 (Cat No. Zu.IX) (Image)

Cat. $4000, Est.US$1,000

1913 Forerunners, Lugano, 25c green & red, h.r., well centered, fresh and fine, with 1988 von der Weid certificate, cat. $4000 (Cat No. Zu.IX) (Image)

Cat. $4000, Est.US$1,500

1913 Forerunners, Lugano, 25c green & red, used on flown picture postcard flown from Lugano to Zurich, v.f., rare, cat. $2850 (Cat No. Zu.IX) (Image)

Cat. $2850, Est.US$1,000

1913 Forerunners, 50c red, canceled Sierre Siders (19.V.13) on flown card (Oscar Bider), some creases, minor toning, fine, cat. $3200 (Cat No. Zu.Xa) (Image)

Cat. $3200, Est.US$500

1919 30c brown & green, two singles, used on piece, in combination with two additional stamps, canceled "Islikon 24.XI.21", v.f., with 1984 von der Weid certificate (Zu.1, SFr 3,600) cat. $2600 (Cat No. C1) (Image)

Cat. $2600, Est.US$1,000

1932 15rp green, double impression, h.r., minor gum toning, signed Locher, Tegna, with 1994 Renggli certificate (Zu.16.1.09) (Cat No. C16var) (Image)

Est.US$1,500

1935 10c on 15c green, surcharge inverted, l.h., v.f., with 1999 Eichele certificate. Only one sheet of 50 printed (Zu.20.1A.09, SFr. 17,000 for n.h.) cat. $6500 (Cat No. C20a) (Image)

Cat. $6500, Est.US$3,000

1938 "PRO AEREO" 75c on 50c gray and scarlet, n.h., v.f., pencil signed, with 1995 Rellstab certificate. A rare unused stamp (not regularly sold to the public, but affixed to air mail letters by postal clerks. Only a handful of unused stamps slipped through) (Zu.26) cat. $15000 (Cat No. C26) (Image)

Cat. $15000, Est.US$7,500

1932 (14 Nov) Zurich-Alternrhein flight, three covers and one card, different destinations and frankings, each with appropriate cachet, fine-v.f. (Image)

Est.US$300

1932 7th SAF to Brazil, regular issue franking on front, with 3x2fr air post on reverse, cover roughly opened at left, otherwise fine (Image)

Est.US$150

1850 5c black & red, the so-called "Waadt 5", margins all around, showing full dividing lines at bottom, tied by Geneva grids (AW No.101) on FL addressed locally to Mr. Henry Gogel, with 31 January 1851 departure cds alongside, filing folds away from the stamp, some toning, fine and sound cover, with 1973 Nussbaum and 2011 Eichele certificates (Zu.10) cat. $3750 (Cat No. 2L6) (Image)

Cat. $3750, Est.US$1,000

1850 5c black & red, the so-called "Waadt 5", margins all around (1mm scissor cut at lower left margin, well away from design), tied by red rosette cancel, with corresponding Geneva 3 June 1850 departure cds at top, addressed to Plainpalais, stamp exceptionally fresh, address portion of letter slightly over-written, filing fold away from the stamp, fine cover, signed Roger Calves, with photocopy of 1966 Nussbaum certificate (Zu.10) cat. $3750 (Cat No. 2L6) (Image)

Cat. $3750, Est.US$1,000