"Every second Saturday in summer, every 14 days in winter." It shows the SS Poseidon completed in December 1898 at Grangemouth, Grangemouth Dockyard Co. in Scotland. 745 dwt, 650 IHP, 57.01 x 8.77 x 4.88 meters; 24 passenger berths. Sistership Virgo > Mira.
In 1898 Poseidon's first homeport became Turku (Åbo) in Finland. The company went bankrupt in 1905: in 1917 the Russian Government requisitioned it and in 1918 the Finnish Government used the ship on voyage from Danzig to Vaasa arriving on 18 February carrying arms, ammunition and Finnish Jaegers. In June 1918 it was returned to its owners. On 25 September 1939 en route from Helsinki to Lübeck, the Germans captured it to Swinemünde but on 4 October it was returned to owners in Lübeck. It 1944 it was back to Finland.
In 1954 it was sold to Nasem A. Gandour of Tripoli. Pilgrim service began in 1957 with a diesel engine conversion to a motorship. In 1960 to Jeddah. Mohamed Aly Ben Laden. In 1968 to Aden, Slave Island, scuttled as a breakwater for small ships.