SMS S139 refers to two torpedo boats built for the German (Imperial Navy):
, a launched on 12 November 1906, renamed T139 in 1917 and renamed again as Pfeil in 1927. Still in service in 1944, but fate after then unrecorded. , a 1916 Mobilisation Type torpedo boat launched on 24 November 1917. To France as Deligny in 1920 and scrapped in 1934.
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