American self-propelled seaplane wrecking derrick YSD29 in 1945

Dimensions 104.0 x 31.2 feet. Superior Diesel. Horsepower 400shp. Crane capacity 10 tons. Allocation 11th district. Built by Navy Yard, Mare Island.

Source

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