Comprises:
- 1,Computers Electronic, Elliott Bros Development, File 1, correspondence, 1950-1952;
- 2, Electronic Computers, Elliott Bros Ltd, Development, Vol 2, correspondence, 1952;
- 3, Electronic Computers, Elliott Bros Ltd, Development, File No. 3, correspondence, 1952-1953;
- 4, Electronic Computers, Elliott Bros Ltd, Development, File No. 4, correspondence, 1953;
- 5, Electronic Computers, Elliott Bros Ltd, Development, File No. 5, correspondence, 1953-1954;
- 6, Computers, Elliott Bros, Development, Vol 6, correspondence, 1955-1959;
- 7, Computer, Elliott Bros, Contract No. 2, Vol 7, correspondence, 1953-1955;
- 8, Computers, Elliott Bros, Manufacturing Programme Contract No. 3, correspondence, 1953-1965.