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uy ‘tranaiyiteal Form , . . r Pa I ee” eic_ LABORATORY ca genenac ountAU OF INVESTIGATION oo WASHINGTON, D. C. Tei 3 : : Date py FBI, Birmingham (157-352) October 23, 1963 . Re: . . . a ptm BAPBOMB ( John Edgar Hoover, Director WONT TM PC-77472 13 'e- = PC-77476 IJ PC-77490 13 PC-77545 CW IJ Examination requested by: Reference: Birmingham us examination equeves: ‘Lt ters 10/2/63 and 10/3 Airtels 10/5/63 and 10/ Remarks: Microscopic ~ Toolmar am Spectrographic A listing of specimens Ql through Q17 is contained in the Laboratory report PC-77373, dated 10/1/63, in the case captioned "Unsubs; Explosion at 1601 Center Street, South, Birmingham, Alabama, 9/25/63; BM" (your f{le 157-407, Bufile 157-1042). . ot A partial report dated October 15, 1963, concerning PC-77545 CW IJ, was submitted to you and a portion of the , attached communication reports the completion of the ! examinations of specimens K22 through E26 Jisted in that report. . 1.268" —-¥¢ 4g pointed out that the taking of test cuts or marks with a tool in the field imposes some limitations on the results of any subsequent Laboratory examination, Since the mechanics of a toolmark comparison involve the microscopic comparison of the test cut or mark with the Enclosures (2) (2. Lab report): . 2 - Birmingham (157-407) Enclosures (2) (2 Lab report) y 1 = Birmingham (157-391) Enclosure (Lab report) rod ean & 1 - Bufile (157-1042)'~ s ; ——Pege 1 wh fy (continued on next page) , “ —— ML swh, (10)) ay ADMINISTRATIVE PAGE at reat rt | _—_ ud, Room TELETYPE UNIT , re