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RECORDED FEDERAL BUREAU OF INVESTIGATION 4/24/70 UNITED STATES DEPARTMENT OF JUSTICE SMD : Laboratory Work Sheet LAB FILE Re: ZODIAC File# 9.49911 EXTORTION Lab. # )—700424002 -bEr- 00: -Sacramento 7 z . t E xamination requested by: San Francisco (9-2296) Airtel 4/21/70 | Examination 1 uest d: oe ste Document-Cryptanalysis Date received: 4/23/70 | Result of Exdminatfon: a y Examination by: @- ie chavs nine De M36 V7 er hronte , by grrr me urbe Vite of? oe Seb Baige lls a . o qe & 2% te3T - Coat. Y® haute ty HK tL a. .y a Ge 3 ret C CY Ow De Protea unt t iz alr, dul aft o 2, Specimens submitted for examination hess Photocopy of envelope postmarked "SAN FRANCISCO CALIF, 44 1970 AM 20 APR," bearing hand printed address “Editor San Fran. Chronicle San KXEEX Francisco, Calif." . first page of 0” Qc46 Accompanying/hand printed peginning "This is the ZODIAC oo gfe yen King By phe. way bia ck You eveteed ~~. ..... Qc47 Accompanying second page of hand printed letter - beginning “The new bomb is. .. ." 7 2- Sacramento C G-C6F ) Potnn a ~ of -24-70 Fas Dd ee 21 Reenecen ee casen as wee i ee e SPP ey . - EE << a TE,