cover 1939 U5 to Johannesburg bearing St. Helena ½d. and 1d. tied by two over-inked strikes in blue and showing boxed "POSTED ON BOARD/THE BRITISH/S.S. 'CARINTHIA'/ON THE HIGH SEAS" h.s. in violet; also 1937 U5 to Cape Town with "CERTIFIED POSTED ON THE/ISLAND ON CORONATION DAY/12TH MAY 1937" h.s. in violet, signed by William Repetto, showing a fine strike of type VI cachet in black, partly obscured by South Africa 1d. Postage Due and with "1d." h.s. alongside.