Cook Islands. 1892 1d. black vertical pair imperforate between, large part original gum with a few paper adhesions and gum bends mentioned for the sake of accuracy, negligible when considering this great rarity. Brandon Certificate (2003). S.G. 1a, £10,000
(Image1)

Est. £1,500-2,500

Cook Islands. 1932 2½d. black and deep blue corner marginal vertical pair, both impressions showing dramatic variety centre inverted, unmounted mint with typically crackly gum and natural gum bends; a superb multiple of this scarce variety. S.G. 102var.
Provenance: Cunliffe, Spink Shreves, 2009 (Image1)

Est. £600-700