◆ SpookStack

e.. States Departirent of Mes, #ederal Bureau of Investigation Washingtan 25, A. €. SAC LETTER NO. 38 qs IN REPLY, PLEASE REFER TO Series 1949 q?! 77 St ae uarerl 3% bof MEMO FOR MR. HOOVER CALLAHAN HINCE NANNA TOLSON CALLAN JONES, M. A. NAUGHTEN CLEGG CARLSON KEAY NEASE CONNELLEY CARTWRIGHT LAUGHLIN PARSONS GLAVIN CONRAD LEONARD PENNINGTON HARBO DOWNING LONG RENNEBERGER LADD EDWARDS, H. L. McCABE, E. J. ROGERS NICHOLS EGAN McCABE, N. H. SIZOO ROSEN FEENEY McGUIRE TAMM, Q. TRACY FLETCHER, H. B. McINTIRE WAIKART BAUMGARDNER GURNEA MOBLEY WALL BOSWELL MOHR WHITSON DECLASS}F IED BY_, f Ou Af i your attention is directed to Bureau Bulletin #57, Series 1947, dated October 1, 1947, relating to the discontinuance of investigation by this Bureau in matters concerning flying discs. FLYING DISCS For your confidential information, a reliable and confidential source has advised the Bureau that flying discs are believed to be man-made missiles rather than natural phenomenon. It has also been determined that for approximately the past four years the USSR has been engaged in experimentation on an unknown type of flying disc. The Department of the Air Force has furnished to the Bureau the attached memorandum classified "restricted" dated February 15, 1949, entitled "Unconventional Aircraft." This memorandum is being furnished to you in order that all agents assigned to your office can be informed of the type of information desired by the Air Force in this matter. As set forth in Bureau Bulletin #57, referred to above, no investigation should be conducted by your office relative to flying discs, however, the attached memorandum should be referred to in securing data from persons who desire to voluntarily furnish information to your office relating to flying discs. Very truly yours, John Edgar Hoover Director | , Enclosure | NOT RECORDED 150 APR 4 1949 t t ( c