Contains: (a) Brian�s covering letter; (b) short article from Computing Europe on R L Michaelson, with (superimposed) a photocopy of a photo of HEC2M taken in January 1955; (c) one-page article from vol. 2, no. 1 of an internal BTM document dated about mid-1953; (d) two pages (headed �Achievement�) from a booklet prepared for the 1954 Business Efficiency Exhibition in Manchester; (e) four pages from the Tabulator no. 88, 1955; (f) two pages from the same booklet, describing the Fawley Refinery application; (g) a two-page hand-out describing the bridge-bidding demonstration at the 1954 Business Efficiency Exhibition, together with a specimen punched playing card; (h) covering reply-letter from HL.