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© 90098 "oe x of } The Bureau advised the original envelope and letter hed been forwarded to the FHI Laboretery for examination ¢ : that the Washington Field Office had been notified to fumrigh information regarding the letter to the Metrepolitan Pelies ©: ¢% °° and Capitel Police forces at, Washington, D. C. so that protection. -— eould be afforded. pe sy ‘. 4 5. 8 t On April 1, 1954, the BSurem furmiched the PRI Leboratyp cancerning the of the erizginal envelope ani letter. The report reflected thet beth decumentes had been appropriate sectiong of the Anerymous Letter Filip an idestification, 5 of rs The Laboratory condbaded from its examination thet, on the envelope am] letter bed been a with Corgue pt .