cover 1890 (9 May) cover to London, bearing 1d. single and horizontal strip of three, one stamp with minor corner faults, tied by Rorke's Drift Zululand double circle d.s.; cover, opened out, backstamped Rorke's Drift Natal (12 May), G.P.O. Natal (13 May), Durban (14 May) and London (9 Jun.); very scarce and an exceptionally early date for the double circle cancellation. Photo