Vision Description (EN)
A memorandum from the Department of the Air Force, dated February 15, 1949, titled 'Air Intelligence Requirements Memorandum Number 4' regarding 'Unconventional Aircraft'. It outlines reporting procedures for unidentified flying objects and 'Flying Discs'. The document is marked 'RESTRICTED' at the top and bottom, with no redactions visible.
Descrição Vision (PT-BR)
Um memorando do Department of the Air Force, datado de 15 de fevereiro de 1949, intitulado 'Air Intelligence Requirements Memorandum Number 4' referente a 'Unconventional Aircraft'. Ele descreve procedimentos de relato para unidentified flying objects e 'Flying Discs'. O documento está marcado como 'RESTRICTED' no topo e no rodapé, sem rasuras visíveis.