1888 1/2d vermilion, used with barred oval, showing double overprint variety, a very scarce used example of this error. Cert. Sismondo. (Image)

1888 1d on 1d, 2d on 2d, 3d on 3d, 4d on 4d and 6d on 6d, all lilac and black, unused, fresh, fine and a scarce set of surcharges. Cert. Sismondo for the 4d on 4d (2012). SG £965. (Image)

1888 4d on 4d lilac and black, used, toned corner perf., scarce; cert. Sismondo (2007) (S.G. £500). (Image)

1888 Script VR 5s green and black, mint, fresh, fine and scarce. Cert. Sismondo. SG £1300. (Image)

1913-24 Waterlow 2s6d brown and 5s rose-carmine, mint, plus 5s mint showing variety double overprint, one albino, a fine trio. Cert. Ceremuga for the SG 84a (2021). SG £675. (Image)

1913-24 Waterlow 5s rose-carmine, mint showing variety double overprint, one albino, plus normal for comparison, fine and scarce; cert. Brandon (1978) (S.G. £535). (Image)

1913-24 Waterlow 5s rose-carmine, mint showing variety double overprint, one albino, plus array of other Waterlow, De La Rue & Bradbury 2s6d and 5s mint singles, fine and scarce (. Cert. Brandon (1979). SG £1385+. (Image)

1913-24 Bradbury 2s6d chocolate brown, mint showing variety double overprint, one albino, plus ovpt shifted, fine and scarce; cert. PFSA (1983) (S.G. £550). (Image)

1925-27 3d violet with overprint double (one albino), mint o.g., very fine; cert. PFoSA (1997) (S.G. £200). (Image)