1889-90 2d olive-bistre, mint and used singles both showing inverted overprint varieties, few faults on both, a very scarce pair. Cert. PFSA (2018) for used and BPA (1991) for unused. SG £1'400. (Image)

1892 1/2d grey mint h.r. with overprint double, with one inverted and reversed as a result of an offset from the face of another stamp, horizontal crease and yellowish gum, unusual and scarce; cert. RPS (2004). (Image)

1961, 25c on 2s 6d emerald green and carmine red with surcharge type II at lower left, mint n.h., Stanley Gibbons hs on reverse, a very fine example (S.G. £950). (Image)

1968, 1/2c black, brown and yellow-brown with variety brown omitted in mint n.h. top marginal, very fine (S.G. £425). (Image)