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- fo aM -@ ne 379/76 AIRMAIL rRegrdR, FBI. *. ls “FBI “LABORATORY “‘THE-SNIGHTS OF THE KU KLUX KLAN’ THREREENING LETTER TO oo Re Abliinta airtel to the Bureau 3/2/76. ao : ad for the Bureau are the exiginal and of three copies: 4 threatening letter (made. up of eub-out. newsprint), ang& accompanying envelope addressed to Mrs, MARTEN ih. KENG;: SOR., 234-Sunset Avenue, N. W., Atlan%a, Qs Ga, The letyer £8 postmarked 3/5/76, Maryland. Alse enclosed is. “e phate of tinfoil in which the letter was ‘wrapped. 7 \ an ove ‘sepies ef this letter and accompanying - p6 “.. envelope are being enclosed for Baltimore ag Origin. b7C ‘Kegadona letter was furnished | 3/8/76, by. nies DORA MCDONALD, Secretary to Mrs. CORETTA SCOTT KING, Room 327; 91d. Post Office Building,, Atlanta. Miss McDONALD opens all of Mrs. KING's mail. She has not made ¥erthe contenté @f this letter known to Mrs. KING, once alaeln preferriny hot to bother her. The letter was Ons Bureau (Banos. 5) 2 «Baltimore. (Enes. 2) 2 -_ Melanta (92573) . ‘fz a 1 ta?