1987 May 1 - 1987 Oct 8 Chancellor of the Exchequer’s Private Office files (Lawson) T640/853Public expenditure (Inland Revenue and HM Customs and Excise: Public Expenditure Survey (PES) 1987-1988 bids) Source: HMTPO Release date: 2014 Classification: Secret Page count: 95 T640/853 - download whole file (PDF, 63.15 MB)