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Ielb oe REPORT of the sk LABORATORY — ou _ FEDERAL BUREAU OF j..VESTIGATION WASHINGTON, D.C. 26535 Date: FBI, Denver (9-New) PRI Fileno. ApYit LI, 1969 Re Lab. No, UNSUB; ANONYMOUS LETTER CONTAINING D-690404971 LE POSTMARK 2/12/65 DENVER, COLORADS, MAILED TO SUPREMS COURT JUSTICES EARL WARREN, WILLISM ORVILLE LOUGLAS AND HUGO LAPAYETT“ BLACK ~ VICYIKS EXTORTION Available bu Bures 4/4 1/86 Ql Envelicye postmarked "DENVER, CO 3A PM 12 MAR 1969" hearing handwritten address"Communists or Supreme Court % T ver _ r, . 1 1 te het i it warren = Dourlas » Black Washington, £.C, Q2 Accompanying one-page hardvwrittcn letter tesinnins ‘Dear Fellow Compraces, Was glad to see where....." Result of exacination: Specimens Ql and Q2 were searched threuga the appropriate sections of the Anotywous Letter F:le without effecting an identification; copies have been added thereto No watermark, indented writins. or other Significant feature was observed in specimens Q1 and Gf which woul. indicsate the immediate source of this material. Physical characteristics of these specinens have bcen recorded and are being retainec in the Lakoratory for possible future fcference. The submitted evidence has been photo roaphed ane ‘ is tenporarily retained, : ed ed PICK ne ent SIBROD nen 14 DOT emia CNS a “onrad .——.___ ers | vadle ~osen dian ave! _ iolber Tele, Room tiolmes ‘yandy fou waIL Roo C_J TeLeryee unit CO \ i AOE. "ey De i a alts we ne A eal at - - . “ 71 oa . - - ee aage ~ . Cs a ew re aur, pn eet eT oo ~ Se, a le omy, few 2 ‘ poem ee se a 3 MRM . . eee. 7. - we we : nd a a ‘ e ee, * + ae et DD ee, wee - “ ni - . .