CIA-UAP-D020, Memorandum on Unconventional Aircraft Sightings, 1955

[PAGE 1] TOP SECRET Approved for Release 2026. 1 NOV 1955 SIGNATURE RECORD AND COVER SHEET DOCUMENT DESCRIPTION: SOURCE [illegible] DOC. NO. [illegible] DOC. DATE [illegible] COPY NO. [illegible] NUMBER OF PAGES: 2 NUMBER OF ATTACHMENTS: [illegible] CIA CONTROL NO. [illegible] DATE DOCUMENT RECEIVED [illegible] LOGGED BY [illegible] ATTENTION: This form will be placed on top of and attached to each Top Secret document received by the Central Intelligence Agency or classified Top Secret within the CIA and will remain attached to the document until such time as it is downgraded, destroyed, or transmitted outside of CIA. Access to Top Secret matter is limited to Top Secret Control personnel and those individuals whose official duties relate to the matter. Top Secret Control Officers who receive and/or release the attached Top Secret material will sign this form and indicate period of custody in the left-hand columns provided. Each individual who sees the document will sign and indicate the date of handling in the right-hand columns. REFERRED TO OFFICE / RECEIVED SIGNATURE / DATE / TIME / RELEASED DATE / TIME / SEEN BY SIGNATURE AND OFFICE / DATE [signature block, illegible handwritten entries] NOTICE OF DETACHMENT: When this form is detached from Top Secret material it shall be completed in the appropriate spaces below and transmitted to Central Top Secret Control for record. DESTROYED / DOWNGRADED TO / BY (Signature) / DATE / WITNESSED BY (Signature) / DATE / DISPATCHED (OUTSIDE CIA) TO / BY (Signature) / OFFICE / DATE FORM NO. 26 (USE PREVIOUS EDITIONS) APR 55 TOP SECRET [PAGE 2] [Page 2 is not legible: the OCR of this typewritten page is too degraded to transcribe reliably. Refer to the official PDF for the original content.] [Most of page 2 is illegible] [PAGE 3] [Continuation, also heavily degraded] ...would probably be [illegible] aircraft or missiles. Further discussion of whether the sighting could be technically explained. The document states that the evidence does not conclusively permit the conclusion that the object observed was in fact a radically new type of aircraft. H.P. SCOVILLE, JR. Scientific Advisor OSI:HScoville:ga (31 October 1955) Distribution: Orig & 1 - fwd; 1 - DD/I; 1 - OCI; 1 - ABD/SI; 2 - AD/SI