1914-15 'GRI 1d' 6mm opt DNG Yacht 3pf brown, error '1' for 'I' in 'GRI'. VF M. Mi 1I(var). SG 1a cat £2000. Even normal example of SG 1 are rare while only tiny number exist of the varieties. Certificate can be obtained on request. (P) (Image1)

Estimate AU$2,000

1914-15 'GRI' 5mm opt DNG Yacht 5pf green, variety 'GRI without stops but with normal spaces.' VFU on piece with violet oval cancel. Mi 2II(var). SG 17ga cat £11,000. Great rarity with only several recorded. 2006 BPA photo cert, while new AIEP certificate can be obtained on request. (P) (Image1)

Estimate AU$10,000

1915 'GRI 3d' 5mm opt on DNG Yacht 30pf black & orange/buff. VF U, tied to piece by Stephansort cancel. Mi 8II. SG 23 cat £225. 2002 Ceremuga AIEP photo cert. (P) (Image1)

Estimate AU$250

1914-15 'GRI 4d' 5mm opt on 40pf black & carmine. VF U, tied to piece by part Rabaul oval cancel. Mi 9II. SG 24 cat £275. 2002 Ceremuga AIEP photo cert. (P) (Image1)

Estimate AU$300

1915 'GRI 3d' opt Kawieng (Deutsch Neuguinea) seriffed registration label, blk of 4 no.263-262 &, 258-257. VF fresh 3M/1MNH. Mi 16dII, SG 42 cat £1000 for M singles, MNH should be at least double, so £1250 for this. Rare multiple. Alberto Diena photo cert. (4) (P) (Image1)

Estimate AU$900

1915 'GRI 3d' opt Kawieng (Deutsche Neuguinea) seriffed registration label no.411. VF fresh MNH. MI 16dII. SG 42 cat £250 for M, should be at least double, £500 MNH. (P) (Image1)

Estimate AU$450

1914-15 'GRI 2d' 5mm opt Marshalls Yacht 10pf, vert pair, lower stamp error opt DOUBLE, both equally strong & shifted vert (opt setting 6). Normal VF fresh MLH with natural paper inclusion, error superb fresh MNH with pristine never hinged original gum. SG 52f+52 cat £3777 for M singles, should be at least double, £7500 for the MNH error, plus premium for se-tenant pair. Spectacular & extremely rare. 1997 BPA photo-cert. (P) (Image1)

Estimate AU$6,000

1914-15 'GRI 3d' 5mm opt Marshalls Yacht 25pf, error opt DOUBLE one INVERTED, both equally strong (opt setting 10 & 11). VF fresh MNH with never hinged original gum, tiny spot in UL cnr of no significance. SG 54h cat £4750 for M, should be at least double, £9500 MNH. Spectacular & extremely rare. 1991 BPA photo-cert. (P) (Image1)

Estimate AU$5,000

1914-15 'GRI 5d' 5mm opt Marshalls Yacht 50pf, error opt DOUBLE with only 2nd '5d' at top stamp, equally strongly printed (opt setting 2). Superb fresh MLH, with nice original gum. SG 57g cat £10,000. Spectacular & extremely rare error. Exp Hoffman-Giesecke while new AIEP certificate can be obtained on request. (P) (Image1)

Estimate AU$9,000

1915 GRI 1d opt DNG 5pf green Postcard with wmk, opt type A. VF UN. Mi P1. ACSC NG2A cat $200. (P) (Image1)

Estimate AU$130

1915 GRI 1d opt DNG 5pf green Postcard with wmk, opt type A. VF UN. Mi P1, ACSC NG2A cat $200. (P) (Image1)

Estimate AU$130

1915 GRI 2d opt DNG 10pf red Postcard, opt type B. Superb UN. Mi P2, ACSC NG5B cat $200. (P) (Image1)

Estimate AU$130

1915 GRI 2d opt DNG 10pf red Postcard opt type B. F CTO 'Rabaul New Britain FEB 27 1915' violet oval pmk. Mi P2. ACSC NG5B cat $200+ for UN, plus premium for nice cancel. (P) (Image1)

Estimate AU$180

1914 Provisional usage front remains franked Kangaroo 1d red tied by *Rabaul* NOV 2 1914* FDI pmk in violet (Powell type 49c). Rare. (P) (Image1)

Estimate AU$170

1915 'GRI 1d' opt DNG Yacht 5pf green reply half Postcard, opt type B. UN, creases & trimmed at top. Mi P3. ACSC NG48 cat $200 & under-catalogued. (Image1)

Estimate AU$80

1915 Registered cover piece franked GRI 1d 6mm opt on DNG Yacht 5pf & 2½d on 10pf & 20pf, plus opt 3d Registration Label of Rabaul. All tied by 'Rabaul New Britain MAR 23 1915' oval pmks. VFU. SG 2, 5, 6 & 33d cat £960+ as loose stamps & would be 'from x3' on cover. (P) (Image1)

Estimate AU$900

1915 GRI 2d opt on Yacht 10pf postcard, opt type A, plus unlisted variety 'flaw in R of opt'. Superb fresh UN. Mi P2. ACSC NG5A cat $200. (Image1)

Estimate AU$130

1915 GRI 2d opt on Yacht 10pf Postcards(2), with type A & B opts. type A with unlisted variety 'flaw in R of opt'. 1st superb fresh UN, 2nd 2 small holes. Mi P2. ACSC NG5A & NG5B cat $400. (2) (P) (Image1)

Estimate AU$200