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LN LapOnatTeRT AN FEDERAL BUREAU OF INVESTIGATION WASHINGTON, D. C. ro FBI, Tampa Date: January ty 1964 FBI File No. 9-41768 - ne: UNKNOWN SUBJECT; Lab. No- B-440432 & MARTIN LUTHER KING, et al. ~- VICTIMS EXTORTION — RACIAL MATTERS Specimens Af Sf available in Bureas Q1 Envelope postmarked "SAINT PRTERSBURG FIA. JAN S&S & PH 1964" addressed to "Te F BI Washington BP C” Q2 Accompanying one-page threatening note beginning “Ruben shot Oswald fraid...* and ending “...we not gail no” Result of examination: Specinens Qi and Q2 were searched through the appropriate sections of the Anonyrous Letter File but no identification was effected. <A photograph will be added to this file. Ko indented writing of any significance was noted on specimens Ql and Q2. ' The stamp on the envelope, Ql, Gas torn from a booklet ef five-cent postage stamps. The envelope, Q1, was made of white bond paper, containing no watermarks, to measure approximately 6.50 inches across the top, 6.51 inches along the bottom edge, 3.70 inches along the right edge and 3.63 inches along the left edge. Specinen Q2 was prepared on a sheet of ruled tablet paper which measures approximately 5.99 inches across the top, 6.00 inches across the bottom and 9.00 inches from top te bottom. This sheet of paper contains no watermarks and contains twenty-two blue-green lines on the front and twenty- five blue-green lines on the back. The sheet of paper was bound in a tablet with a red adhesive along the top edge. Specimens Qi and Q2 are retained in the Bureau's files. bie —— ee en ie wat. room Cl} recetyre unre (_] nee ee eee er ee