American self-propelled seaplane wrecking derrick YSD7 in 1945

Dimensions 104.0 x 31.2 feet. Capacity 10 tons. Allocation 5th district. Built byNavy Yard, New York, USA in 1931.

Source

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