J17: Cover to Vancouver from a passenger on the cruise ship 'Caronia' with boxed violet 'TRISTAN DA CUNHA SETTLEMENT OF EDINBURGH SOUTH ATLANTIC' hand-stamp, mailed without postage with 22.II.50 CAPE TOWN / KAAPSTAD PAQUEBOT cds, hand-stamped 'T10c' and boxed violet '4 CENTS DUE', 4ยข violet fourth issue Postage due applied (cancelled by pencil stroke) to pay the deficiency, clean and very fine. (Image)