Files W.F.F. Archive Reports and Research Notes Report, Status of Certain Systems (Including All Systems Current on 31 December 1954 and All Such Systems Under Study Any Time During the Calendar Year 1954), 1955
Pacific Processing Division Quarterly Review of Crypto Systems, 1 July 1955
Status of Systems-1954, 10 January 1955
Status of Systems-30 June 1955, 19 July 1955; Supplement to the Report of 31 December 1954 and 31 March 1955
Status of Systems-31 March 1955, 10 April 1955; Supplement to the Report of 31 December 1954