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rc LA 9-2498 There is c rewith an original letter dated 6/13/58 a TT to former SAC D. K, BROWN. While e typewriting on this letter does not appear identical with the extortion le a the letter is on the letterhead of the it is noted from the watermark on this letter that it was made by the Rising Company and that one of the extortion letters was also manufactured by the Rising Company. It 1s requested that this letter be compared with the extortion letters as to size and type of paper for any possible identification. It is requested that this letter be returned to the Los Angeles Office as no copies of it have been retained.