at lower left, backstamped "GRAAFF REINETT/SP 28/1864"; scarce combination, superb quality, one of the very finest Cape triangular postal history items; perfection, one of the great De La Rue covers" /> cover 1864 (28 Sep.) entire letter, mentioning an enclosure, registered from South African Central Bank, Graaff Reinet addressed to Middleburg, bearing 4d. deep blue, margins all round, used in combination with Perkin's Bacon 6d. slate-lilac, good to enormous margins all round, neatly tied by triangular cancellations; entire letter, endorsed<I> "Registered"</I> at lower left, backstamped "GRAAFF REINETT/SP 28/1864"; scarce combination, superb quality, one of the very finest Cape triangular postal history items; perfection, one of the great De La Rue covers | Christie's