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$2,200

1914-15 'GRI 3d' 6mm opt DNG Yacht 25pf black & red on yellow. VF fresh MLH. Mi 7I, SG 7 cat £375. 2023 Ceremuga AIEP photo cert (P) (Image1)

Estimate AU$350

1914-15 'GRI 1d' 5mm opt DNG Yacht 5pf, error 'Ip' due to 'd' INVERTED & '1 with straight top serif = I'. Superb U with 'Stephansort' blue cds. Mi 2IIF(var). SG 17c/e cat £3750+ for the inverted d variety, plus should be extra +50% to +100% for the for the combination of 2 varieties together, so £5625 to £7500. Great rarity with only 2 examples recorded. New AIEP certificate can be obtained on request. (P) (Image1)

Estimate AU$6,000

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$11,000

1914-15 'GRI 2½d' 5mm opt DNG Yacht 10pf red. VF fresh M. Mi 5II, SG 20 cat £225. Exp (P) (Image1)

Estimate AU$200

1914-15 'GRI 3d' 5mm opt DNG Yacht 30pf black & orange on buff. VF fresh MNH. MI 8II, SG 23 cat £170 for M, should be at least double, £340 MNH. Exp Bloch, 2023 Ceremuga AIEP photo cert (P) (Image1)

Estimate AU$275

1914-15 'GRI 4d' 5mm opt DNG Yacht 40pf black & carmine. VF fresh MLH. Mi 9II, SG 24 cat £180. (P) (Image1)

Estimate AU$150

1914-15 'GRI 5d' 5mm opt DNG Yacht 50pf black & purple on buff. VF fresh MLH. Mi 10II, SG 25 cat £325. 2023 Ceremuga AIEP photo cert. (P) (Image1)

Estimate AU$300

1914-15 'GRI 8d' 5mm opt DNG Yacht 80pf black & carmine on rose. VF fresh MLH. MI 11II cat €500, SG 26 cat £425. Exp Bloch, plus 2023 Ceremuga AIEP photo cert. (P) (Image1)

Estimate AU$400

1915 'GRI 3d' opt Rabaul (Deutsche Neuguinea) registration label, no. 724. Fresh M, irregular perfs at top. Mi 16g. SG 33 cat £275. (P) (Image1)

Estimate AU$150

1915 'GRI 3d' opt Rabaul (Deutsch Neuguinea) registration label no.565. VF fresh MLH. Mi 16g, SG 33 cat £275. 1999 Ceremuga AIEP photo cert. (P) (Image1)

Estimate AU$275

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. (P) (Image1)

Estimate AU$1,000

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

1915 'GRI 3d' opt Kawieng (Deutsch Neuguinea) seriffed registration label no 567. F-VF fresh MLH, irregular perfs. Mi 16dII, SG 42 cat £250. (P) (Image1)

Estimate AU$180

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, 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$6,500

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$6,000

1914-15 'GRI 5d' 5mm opt Marshalls Yacht 50pf black & purple on buff. VF fresh M. Mi 8I, SG 54 cat £300. Only 599 printed. Ext Stolow & Thier, plus 2023 Ceremuga photo cert. (P) (Image1)

Estimate AU$300

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

1914-18 'GRI 8d' 5mm opt Marshalls Yacht 80pf black & carmine on rose. VF fresh M. MI 9I cat €600. SG 58 cat £475. Only 490 printed. Exp Stolow & Thier, plus 2023 Ceremuga AIEP photo cert. (P) (Image1)

Estimate AU$450

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$150

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$150

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

Estimate AU$150

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$200

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$90

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