"STEEL,CONSIST OF A RIGHT HAND FEMALE HINGE HALF,MARK NO. DS-1R,ALEFT HAND FEMALE HINGE HALF,MARK NO. DS-1L,AND TWO MALE HING HALVES,MARKNO. DS-2,USED FOR HINGING BOTTOM OF STABILIZER TOWERS TO OUTBOARD ASSEMBLYANGLE ON 100 TON AND 400 TON PONTOON DRYDOCK /P-SERIES/,NAVFAC DWG 816468,MARK NO. DS-1"