cover 1864 (10 Apr.) cover from Cape Town "p. Golden Fleece via England", bearing 6d. slate-lilac, three pairs with margins all round, and single De La Rue 4d. blue, large margins on two sides, just touched at lower left; slight soiling; cover backstamped "CAPE TOWN/AP 10/1864/CAPE OF GOOD HOPE" in red and "PLYMOUTH/MY 20/1864/SHIP LETTER" in black, showing "10" and Philadelphia Jun. 2 arrival d.s.; original letter, mentioning enclosures, is included; a remarkable and extremely rare cover