This is a US Coast Guard buoy tender

Similar Images from the Collection

U.S. Coast Guard buoy tender
Ship. 'C.G. 21'. USCG DD#21
Coast guard ship at Navy Yard
Coast Guard ship Davis, #21 on Marine Railway at Charlestown Navy Yard. She damaged her propeller when she hit rocks off Boston Harbor
USS Tampa in drydock getting new propeller.
Coast Guard boat CG-21, the 'Davis,' going into Marine Railway at Navy Yard