1920 O.A.S. cover with "Australian Comforts' Fund" Adelaide address on backflap, with Cape Town departure and handstamped "On Active Service Military Secretary" cachet, addressed to England, fine usage from a member of the Australian G.S.W.A. contingent (Image)

Est.US$150

1921-26 seven stationery envelopes, some with Zuidwest Afrika overprints, upfranked with various South Africa and SWA adhesives, various markings, some Registry handstamps, fine (Image)

Est.US$250

1923 1/2d-£1 Setting I, complete set of 12 bilingual pairs, n.h., fine-v.f. (catalogued as hinged) cat. £2500 (Cat No. SG 1-12) (Image)

Cat. £2500, Est.US$750

1923 1p rose red, overprint inverted, block of four, forming two bilingual pairs, l.h. at top, bottom n.h., v.f., with 1974 Royal certificate, cat. £1000 (Cat No. SG 2a) (Image)

Cat. £1000, Est.US$300

1923 1p rose red, overprint inverted, bottom sheet margin horizontal pair, n.h., fine (catalogued as hinged) cat. £500 (Cat No. SG 2a) (Image)

Cat. £500, Est.US$150

1923 1p rose red, overprint inverted and showing a strong shift, vertical bilingual pair, also variety "Af.rica" in pair with normal, h.r., fine-v.f., the latter with 1988 Philatelic Federation of Southern Africa certificate, cat. £680 (Cat No. SG 2a,2c) (Image)

Cat. £680, Est.US$200

1923 2p dull purple, overprint inverted, horizontal marginal pair, the right stamp with hyphen between "South" and "West", constant on R1/5 (lower right pane) of the normal (upright) setting, l.h., fine, rare (one of only three possible) cat. £700 (Cat No. SG 3a) (Image)

Cat. £700, Est.US$250

1923 2p dull purple, overprint inverted, horizontal bilingual pair, l.h., fine, signed Diena, with 2006 Brandon certificate, cat. £700 (Cat No. SG 3a) (Image)

Cat. £700, Est.US$250

1923 2p dull purple, overprint inverted, horizontal bilingual pair, l.h., fine, with 1979 Royal certificate, cat. £700 (Cat No. SG 3a) (Image)

Cat. £700, Est.US$250

1923 1sh3p pale violet, overprint inverted, vertical bilingual pair, top n.h., bottom h.r., v.f., with 2009 Philatelic Federation of Southern Africa certificate, cat. £450 (Cat No. SG 8a) (Image)

Cat. £450, Est.US$150

1923 5sh, 10sh and £1 bilingual pairs, Setting II (10mm between lines of the overprint), n.h., fine-v.f. (catalogued as hinged) cat. £1500 (Cat No. SG 13-15) (Image)

Cat. £1500, Est.US$500

1923 10sh blue and olive green, setting II, three bilingual pairs, slightly different shades, l.h., fine-v.f., cat. £1800 (Cat No. SG 14) (Image)

Cat. £1800, Est.US$500

1923 10sh blue and olive green, setting II, upper left sheet corner margin interannual block of four, two bilingual pairs, central Windhoek cancel, v.f., cat. £280 (Cat No. SG 14) (Image)

Cat. £280, Est.US$150

1923 10sh blue and olive green, setting II, left marginal pair, also 10sh Setting III, lower right Plate No.1 pair, both n.h., the latter with 2012 BPA certificate (catalogued as hinged) cat. £780 (Cat No. SG 14,26) (Image)

Cat. £780, Est.US$250

1925 1/2d-£1 bilingual pairs, complete set of 12, n.h., fine-v.f. (catalogued as hinged) cat. £550 (Cat No. SG 29-40) (Image)

Cat. £550, Est.US$250

1926 (5 Mar) registered cover franked with pair of 3p blue, tied by departure cds, with corresponding "Windhuk" squared circle Registry handstamp, number filled in by hand, very rare, with additional departure pmk on back (Image)

Est.US$150

1927 3p and 10sh bilingual pairs, each showing no stop after "A" of "S.W.A", h.r., fine-v.f., cat. £450 (Cat No. SG 61a,67a) (Image)

Cat. £450, Est.US$150

1916 (27 Nov) Prisoner of War cover with "Free of charge Aus." handstamp, "Passed by Censor" and sent to Windhoek, with arrival pmk (Image)

Est.US$100