A vessel owned by the Fred Olsen line, between Oslo and Newcastle.  The card, real-photo, was mailed from Norway in 1955 and still has stamp and postmark.  And the ship?  This should interest you, translated and condensed from the German Wikipedia entry:  “The Blenheim was a ferry and cruise ship operated by Fred Olsen & Co., in use for the shipping company until 1980, then sailed as Scandinavian Sea for SeaEscape . After a fire, it was converted in 1985 to a pure cruise ship and started service in 1986 as Discovery I. On May 8, 1996, another fire destroyed Discovery I, and the wreck went to Alang, India for demolition in 1997.”  Gosh.  Grade: 1