This is a very interesting ship mail cover posted on the S.S. MARIPOSA of the Matson Line ship stationary First Sailing of 26 October 1956. The cover is embossed with the Palm Tree, Mermaid and Ship. The cover has been cancelled Sydney 23 November 1956 and San Francisco 11 December 1956. This is a nice example of the Olympic Games Melbourne 1/- and Queen Elizabeth II 3d green used on cover. Uncommon. Condition as per scans.