American self-propelled seaplane wrecking derrick YSD30 in 1945

Dimensions 104.0 x 31.2 feet. Superior Diesel. Horsepower 400shp. Crane capacity 10 tons. Allocation 14th district. Built by Navy Yard, Mare Island in 1941.

Source

Bureau of Ship. Navy Department. Ships’ Data US Naval Vessels. Vol III. Auxiliary, district craft and unclassified vessels, 15 April 1945