The papers are composed of 11 business accounts books of McKenzie and Co. and are those starting:
- February 1976
- April 1979
- August 1980
- May 1982
- March 1984
- August 1985
- May 1988
- May 1991
- May 1993
- December 1995
- March 1999
The accounts books have columns such as: Clients; Comm; Banked; Date; Inv. No; Cheque no; Staty; Equip; Sub-contract; Petrol; Motor; Misc; VAT; Salaries; PC; H.M; A.S; Cash; Cheque; Credit. Some books differ.
There are some samples of McKenzie and Co. letter-headings from various business locations.