Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. USS PGM-2 -  USS PGM-2 was a PGM-1 class motor gunboat that served in the United States Navy during World War II. She was originally laid down as an SC-497 class submarine chaser on 6 July 1942 by the Robinson Marine Construction Company in Benton Harbor Michigan and launched on 17 June 1943. She was commissioned as USS SC-757 on 12 August 1943. She was later converted to a PGM-1 class motor gunboat and renamed PGM-2 on 10 December 1943.
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Mean Of Transportation