Q:RFA Sea Salvor (A503) was a salvage vessel of the post-war Royal Fleet Auxiliary. She also served as a support ship for Mine Counter Measures vessels.Built by the Goole Shipbuilding & Repair Co. Ltd. Goole the ship was launched on 22 April 1943 and commissioned in February 1944. Decommissioned in April 1971 the ship was laid up at Devonport and arrived at Grays Essex for scrapping on 18 January 1973. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Mean Of Transportation