SECURITY GRADING N.B. The (N.B. The grading of this jacket must be the same as that of the highest graded UPGRAD document contained in it. The appropriate upgrading slip must be affixed when ever necessary.) Contents checked for transfer to D.RO YEAR STAMP H.M. DIPLOMATIC SERVICE (143-173) FILE No.NB3 548 1 416 (Part D). DEPT. or POST REFER TO REFER TO T REFER TO TO NAME (and dept. when necessary) SEE: NAME DATE 1 (and dept. when necessary) NAME (and dept. when necessary) DO NOT RETAIN FILES AND PAPERS UNNECESSARILY RETURN THEM TO REGISTRY FOR B.U. OR P.A. CLOSED UNTIL D PART Registry Address Downing Street (W) (N.B. The grading of this jacket must be the same as that of the highest graded document contained in it. The appropriate upgrading slip must be affixed when ever necessary.) YEAR STAMP SEC N.B. N.B. FILE No. SECRET
