The ship was built in July 1924 under number 11 at Trosvik mekaniske Verksted in Brevik in Norway . While the Mosken was initially used as a ferry on Lofoten and Vesterålen , it served as a liner on the Hurtigruten between 1927 and 1932. This mission ended with the delivery of the new shipyard Vesteraalen in 1932. After that, it served again as a ferry in Lofoten until 1957 and was then sold. Initially it was bought by an owner from Bergen, who however resold it to Gambia in 1960 . It was then used as a transmission station for the pirate radio station “Radio Mercur” under the name Cheeta II in the North Sea off Denmark . Home port was Bathurst . It was last there as a restaurant ship. After a fire in the mid-1960s, it sank there and was scrapped.
The ship was named after the uninhabited mountain island Mosken of the Lofoten archipelago, which belongs to the municipality of Værøy in the Nordland county.