The archive contains articles written by Plymen, 1948-1991; operational research reports and notes complied by Plymen and the Operational Research Section of the Second Tactical Air Force during the Second World War, 1941-1946, with some later OR material and papers, c.1982-1997; and photographs dating from the war, c.1945.
This collection forms part of the Operational Research and Operational Research Society Archive (MSS.335), which was deposited with the Centre by operational research practitioners.
The archive has been catalogued to file level. A copy of the finding aid is available both online and in paper format in the Centre's searchroom, at the National Register of Archives in London and in Chadwyck-Healey's 'National Inventory of Documentary Sources'.