1916-23 5s rose-carmine and 10s indigo-blue Seahorses with non-UPU "SPECIMEN" overprint (type GB26), both mint n.h. left marginal singles, very fine and scarce Specimens from the sheets of 40 released by the BPMA (S.G. £2'800 for UPU specimen ovpts). (Image)

1916-23 10s indigo-blue, mint o.g., light horizontal gum bend not detracting from the appearance, a vibrant example of this very rare shade of which only 60 examples were issued, the most important stamp of Nauru; cert. BPA (1947) (S.G. 11'000). (Image)

1916 2s6d, 5s, 10s pale blue and 10s deep bright blue (cert. RPS 1968), all mint l.h., very fine (S.G. £975). (Image)

1916-35 mint range on double sided stock sheet with the 1916 issue, 1924 set (with some extra values) and an attractive group of Seahorses (some gum toning), with 5 x 2/6d plus a corner marginal block of 4, 5/-, 10/- pale and the scarce 10/- deep bright blue. (S.G. £2'250). (Image)