1891 ”Lamu Provisional” with Thick Manuscript ”½ anna” on 2a. vermilion from the top of the sheet, initialled ”AB”, unused without gum, very fresh; light corner crease at upper right and tiny tear at foot, still one of finest examples known of this MAJOR BRITISH EAST AFRICA RARITY OF WHICH ONLY FIVE UNUSED ARE RECORDED. B.P.A. Certificate (2013). Provenance: Howard and Torie Gibralter Estate, September 2000, ex T.Krieger (estimated in the sale 8000-9000 GBP). Illustrated in the John Minns handbook. S.G. 23, £11,000