51 (55) 1890 ½d vermilion Q Victoria of Great Britain, overprinted "Protectorate" (SG Type 17) 19mm long, rare and undercatalogued as only 840 were printed, this stamp is difficult to locate, as it was an essay overprint that was pressed into service during a shortage, less than 1% were used, undercatalogued, perfectly centered, lightly canceled.
