Correspondence regarding the hire of IBM data processing equipment, including card punch and verifier, by LEO Computers Ltd. Comprises:
- Copy letter from M.A. Holmyard (Secretary, LEO Computers Ltd) to the Data Processing Division, IBM UK Ltd, returning an agreement for a Model 001 card punch and Model 001 card verifier [the agreement does not survive in the file], 4th Jul 1962; 
- Letter from R.C. Aikman (Data Processing Division, IBM UK Ltd) to The Secretary, LEO Computers, acknowledging return of the agreement, undated; 
- Copy letter from M.A. Holmyard (Secretary, LEO Computers Ltd) to the Data Processing Division, IBM UK Ltd, requesting the return of their copy of an agreement, 23rd Jul 1962; 
- Letter from W.J. Dunbar (IBM UK Ltd) returning the requested signed agreement, 26th Jul 1962. [The agreement does not survive in the file]; 
- Copy letter from M.A. Holmyard (Secretary, LEO Computers Ltd) to  IBM UK Ltd, acknowledging the return of their copy of an agreement, 27th Jul 1962.

Provenance :
Collected by Peter Bird as part of his research for his book LEO - The First Business Computer (1994).