1858 Britannia Surcharged Issue: 4d green, two imperf. singles, tied indistinct black circular target cancels on 1858 folded letter sheet from Port Louis to Cape of Good Hope, with 'MAURITIUS/JU.17.1858' crown ds alongside, Port Elizabeth & Cape Town red oval arrival bs, deep rich colours and a very rare franking, ex Seybold, Vikram Chand and "Tatiana", cert. BPA (1981). (Image)