1914-15 'GRI 5s' 3½mm opt DNG Yacht 5Mk carmine & black, top value. VF MNH, never hinged darker original gum with sl vert gum crease, beautiful bright colours. Mi 15I, SG 15 cat £14,000 for M, should be at least double, £28,000 MNH. Only 102 printed in total & great rarity MNH - 1st example we have ever seen. 1982 RPSL photo cert, while diff new cert can be obtained on request. (P) (Image1)

Estimate AU$15,000

1914-15 'GRI 3d' 5mm opt DNG Yacht 25pf black & red on yellow. Superb U, on piece with 'Rabaul' straight-line pmk. Mi 7II, SG 22 cat £250 for loose U & such nice piece with rare cancel should be +50% so east £375. (P) (Image1)

Estimate AU$350

1914-15 'GRI 5d' 5mm opt DNG Yacht 50pf. VF fresh MNH, crayon marks on perfs from making positioning lines for opts. Mi 10II. SG 25 cat £325 for M, should be at least double, £650 MNH. Only 569 printed. (P) (Image1)

Estimate AU$350

1914-15 'GRI 8d' 5mm on DNG Yacht 80pf black & carmine. F-VF fresh M. Mi 11II cat €500. SG 26 cat £425. Only 643 printed. (P) (Image1)

Estimate AU$450

1915 'GRI 3d' opt Rabaul (Deutsch Neuguinea) sans serif registration label no 436. M, straight edge at right. Mi 16g, SG 33 cat £275. (P) (Image1)

Estimate AU$180

1915 'GRI 3d' opt Herbertshohe (Deutsch Neu-Guinea) sans serif registration label no 633. F-VF UN, tiny tear at top. Mi 16c, SG 36e cat £500. (P) (Image1)

Estimate AU$300

1915 'GRI 3d' opt Kawieng (Deutsch Neuguinea) serif Registration label No 201. VF fresh M. Mi 16dII, SG 42 cat £250. (P) (Image1)

Estimate AU$300

1914 'GRI 2d' 5mm opt Marshalls Yacht 10pf red. VFU, Rabaul oval cancel. Mi 3I, SG 52 cat £50. (P) (Image1)

Estimate AU$60

1914-15 'GRI 2d' 5mm opt on Marshalls Yacht 20pf ultramarine. VF fresh MNH. Mi 4I, SG 53 cat £27 for M, should be at least double £54 MNH. (Image1)

Estimate AU$50

1914 'GRI 3d' 5mm opt Marshall Yacht 25pf black & red/yellow. VF fresh MNH. Mi 5I, SG 54 cat £450 for M, should be at least double £900 MNH. Only 299 printed. Exp Holcombe with copy of photo-cert of pr from where it came. (P) (Image1)

Estimate AU$800

1914 'GRI 8d' 5mm opt Marshalls Yacht 80pf black & carmine on rose. VFM, tiny perf tear, horiz opt black lines on gum. Mi 9I cat €600. SG 58 cat £475. Only 490 printed. Exp Champion. (P) (Image1)

Estimate AU$275

1914 'GRI 1s' 4mm opt Marshalls Yacht 1Mk carmine. Superb fresh MNH, pristine never hinged original gum. Mi 10I, SG 59 cat £4000 for M, should be at least double, £8000 MNH. Only 133 in total printed & major rarity in fresh MNH condition. 2014 Scheller photo cert while new Ceremuga AIEP photo cert can be obtained on request. (P) (Image1)

Estimate AU$9,000

1915 '1' on 'GRI 2d' 5mm opt Marshalls Yacht 10pf carmine. VF fresh MLH. Mi 14, SG 63 cat £200. Only 480 printed. (P) (Image1)

Estimate AU$200