1914-15 'GRI 3d' 6mm opt DNG Yacht 25pf black & red on yellow. Superb fresh MLH. Mi 7I. SG 7 cat £375. Only 869 printed. Exp Zumstein, plus 2021 Ceremuga AIEP photo cert. (P) (Image1)

Estimate AU$450

1914-15 'GRI 5d' 6mm opt DNG Yacht 50pf black & purple on buff, horiz pr. Superb U, violet s/l 'Rabaul OCT 17 1914' FDI! Mi 10I, SG 10 cat £2000, plus premium for pr & FDI. Only 563 printed & probably unique multiple from 1st day of issue. Certificate can be obtained on request. (P) (Image1)

Estimate AU$2,500

1914-15 'GRI 2½d' 5mm opt DNG Yacht 20pf ultramarine. VFU, violet oval Rabaul pmk. Mi 6II, SG 21 cat £2500. Very rare, only portions of 2 sheets printed. PF/NY photo cert. (P) (Image1)

Estimate AU$2,500

1914-15 'GRI 3d' 5mm opt DNG Yacht 25pf black & red on yellow (11th setting, Pos 1). VF fresh M. Mi 7II, SG 22 cat £190+, plus premium for this rare setting. Only total 869 printed & very few from this setting. 2021 Ceremuga AIEP photo cert. (P) (Image1)

Estimate AU$300

1914-15 'GRI 3s' 5½mm opt DNG Yacht 3Mk violet-black, variety 'no stop after I' (opt setting 7), which is listed by SG on the 1s/1Mk & 2s/2Mk, but NOT listed on the 3s/3Mk! VF MLH with original gum, stamp evenly lightly tropicalized. Mi 15II(var), SG 29(a) cat £10,000 as normal SG 29, while the pro-rata calculation from cat values of varieties 1s/1Mk & 2s/2Mk would make cat £22,000 for the variety 3s/3Mk. Unique example of this important variety which will surely get SG listing in future. 1986 Holcombe photo cert, while new AIEP photo-cert can be obtained on request. (P) (Image1)

Estimate AU$30,000

1914-15 'GRI 3d' 5mm opt Marshalls 25pf black & red on yellow (10th setting, Pos 1). VF fresh MLH. Mi 5I. SG 54 cat £450+, plus premium for this rare setting. Only 299 printed & very few from this setting. Exp Buhler, plus 2021 Ceremuga AIEP photo cert. (P) (Image1)

Estimate AU$500

1914-15 'GRI 8d' 5mm opt Marshalls Yacht 80pf, marginal vert pr, lower stamp error opt DOUBLE. VF 1MLH/1MNH, sl aging, normal MLH & error MNH with never hinged original gum. SG 58+58e cat £10,475 for M singles, should be at least double, MNH error, thus £20,475, plus premium for such a spectacular se-tenant error multiple. 1959 BPA photo cert, while diff new cert can be obtained on request. (2) (P) (Image1)

Estimate AU$10,000

1915 'OS GRI 1d' opt DNG Yachts 3pf & 5pf VF fresh MLH. Mi D1-2, SG O1-2 cat £135. (2). (P) (Image1)

Estimate AU$150