Copies of papers, 1909-1974, comprising typescript copy of the 'Interim Report of the Advisory Committee for Aeronautics', 1909; night order book, HMS THESEUS, Korea, 1950-1951; newspaper cuttings on HMS THESEUS' departure from UK to Korea and subsequent return, 1950-1951; typescript transcript of Royal United Services Institute for Defence Studies lecture by Bolt, Oct 1951, entitled 'HMS THESEUS in the Korean War and some special problems of naval aviation in that theatre' (subsequently published in the Journal of the Royal United Services Institute for Defence Studies; standard circular letters to all retired admirals, containing Royal Navy news and information, from Chief of Naval Staff and First Sea Lord Adm Sir Varyl (Cargill) Begg, 1966-1968, Adm Sir Peter (John) Hill-Norton, 1971, and Adm Sir Michael (Patrick) Pollock, 1972-1974; article by Bolt on minesweeping in 1940-1941 by Vickers DWI (Directional Wireless Installation) Wellington aircraft entitled 'Minesweeping Wellingtons: Part 1: equipment and technique: early operations in the Thames Estuary', published in Air Pictorial (Apr-May 1979), with nine uncaptioned photographs of Wellington aircraft and a captured German magnetic mine.