COOK ISLANDS 1963 (PROOF) 5S RAROTONGA IMPERF BLOCK
5s Rarotonga bottom right corner imperforate block x 12 from the Bradbury Wilkinson archives. Signed and inscribed in the margin 'Approved for High Commission 27/2/63'. Probably the largest block extant from the single proof sheet of 120 stamps. Delightful. Fine unmounted mint. SG173var; SC158var
