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mits RABORATORY ...4£— . . FEDERAL BUREAU OF INVESTIGATION = oe WASHINGTON, D.C. 20535 0s US rer 8 ic, Ban Antonio (1-833) 4 me pete sae e200 57h Ate al : the eo Oe . _ FBI File No 3 Sr a aie : | 7 | Lab. No. D-~ p= ThOs23020 PF HEARNAP 00; San Francisco _ Specimens recelved 7 . 6-20-14 (1538 "Envelope postmarked HAUSTIN, 1X 787 PM i0 JUN 1974,” bearing the hand printed address "The Honorable Poliph . Briscoe Governor of Texas Capitol Building Austin, Texas 78701" Q1553 Accompanying sheet of paper bearing hand printed message beginning "BEWARE Patricia Hearst in Austin. Friends will ..." Result of examination: Qi5 52 and Q15533were not associated with material in the Anonymous Letter File. Copies have been added thereto. A definite conclusion was not reached whether the questioned writing on Q1552 and Q1553 was prepared by any of the writersof the unidentified questioned writing, known writing or purported known writing on items previously submitted in this cease coi in case captioned "SYMBIONESE LIBERATION ARMY (SLA) EM", due to the presence of unexplained variations and the lack of sufficiently comparable writing. However, nothing of particular significance was ocoserved in this comparison. Q1552 and Q1553, which have been photograpned, are peing returned separately. BRG:mew {UAT (7)