1927 Airmail Plane opt set 2Fr & 5Fr. VFM. SG 455-6 cat £600, Yv A1-2 cat €500. 2001 Ceremuga photo cert. (2) (P)

Estimate AU$275

1936 Airmail Banknote 50Fr ultramarine/rose. Superb fresh MLH, LL cnr marginal. SG 541 cat £1000+. Yv A15 cat €800+. Beautiful stamp. (P)

Estimate AU$375

1936 Airmail 50Fr blue & rose Banknote. VF fresh MLH, almost MNH. SG 541 cat £1000, Yv A15 cat €800. (P)

Estimate AU$300

Nossi Be: 1894 P & C set 1c-1Fr. Mostly F-VF U. SG 44-56 cat £160, Yv 27-39 cat €175. (13) (P)

Estimate AU$120

Obock: 1892 'OBOCK' straight-line opt Postage Due 2Fr brown. Superb fresh M, 4 margins. SG D37 cat £275, Yv TT17 cat €290. Exp Brun AIEP. (P)

Estimate AU$250

Obock: 1893 Triangle Camel Rider set 2Fr & 5Fr. VF MLH, full margins. SG 63-64 cat £250, Yv 45-46 cat €230. (2) (P)

Estimate AU$180

Sudan: 1894-1908 Peace & Commerce 25c black on rose, horiz gutter pr (Millesimes) with no.4 in gutter. VF fresh M. SG 10(var), Maury 4(Mil) cat €275. (P)

Estimate AU$90

1902 'OSGS' Opt Camel Postman 1m brown & pink, wmk rosette, error opt INVERTED with round stops. Fresh M, sm thin, VF appearance. SG O3e cat £900. Very rare. BPA photo-cert. (P)

Estimate AU$500

1902 'ARMY OFFICIAL' horiz opt Camel Postman 1m brown & carmine error 'OFFICIAL' INVERTED & above Army, whole opt is shifted left, wmk mult star & crescent. VF fresh M. SG A2(var) cat £600++ & much under-catalogued. Extremely rare combination as only 120 printed of all possible combinations. BPA photo-cert. (P)

Estimate AU$1,000

1906-11 'Army Service' opt Camel Post 5Pi brown & green, wmk rosette. VF fresh MLH. SG A15 cat £130 & under-catalogued. Exp Ela & Sorani. (P)

Estimate AU$200