95-97 (86-88) 1897 2½d on 1a indigo and red stamps of Zanzibar overprinted "British East Africa" SG Type 8 further surcharged locally, cplt (3) with all 3 SG surcharge types 12-14, only 500 cplt sets were issued, rare and undercatalogued as the difficult Type 13 only occurred 10 times in the whole sheet.
