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AUSTRALIA - 1924-25 1d sage-green Head no watermark (SG 83) mint study collection on pages, includes Plate 3 and Plate 4 Harrison IMPRINT BLOCKS of 8 with plate flaws BW 79(4)ia, BW 79(4)j 'RA' joined and BW 79(3)r, gutter block of 12 with plate flaw BW 79(3)l, marginal block of 20 with plate flaws BW 79(4)f, 79(4)g & 79(4)h Flaw under neck, corner blocks of 9 & 15 with two minor varieties, two pairs and eight singles incl with plate flaws - note BW 79(4)d Secret mark etc. Some blocks with toned spots. (84 stamps)