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Date range: 1 Jan 1945 – 18 Jun 1970.

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PDF PREM19/919 66 Oct 7 82 Oct 18 23 Secret Security (Security at Chequers; reports on break-in (September 1966); mishandled mail (December 1972); Territorial Army exercise (June 1973); low-flying over Chequers (February 1974))
PDF PREM19/1906 70 Feb 10 85 Jan 18 178 Unclassified Prime Minister (Gift of moon dust to the people of the UK from President Nixon of the USA)
Info only PREM19/2517 68 Sep 25 86 Jan 20 Retained Sec 3.4 Security (Procedure for dealing with suspicious letters and parcels received at 10 Downing Street: letter bombs) (Part 1)
PDF T640/1174 70 Apr 18 89 Jul 26 202 Secret Budget (Transitional arrangements for a uniform business rate)
PDF T640/1205 70 Feb 6 89 Mar 8 146 Confidential Budget (Budget 1989: employee share option schemes)
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Documents lie at the core of this website, each one dated and sorted chronologically (by default) in search results. Most are images in PDF format of original paper documents scanned or filmed for the site. There are also transcripts of speeches and interviews, press articles, photos, videos, and more. The document database contains tens of thousands of items and permits complex searching.

Files are multi-page PDFs from which most of the documents on the site are selected. All of Mrs Thatcher’s official files from No.10 are available in full on this site (paper copies are stored at the National Archives in the series PREM19), as well as most of those of Geoffrey Howe and Nigel Lawson as Chancellor (stored at TNA as series T639 and T640).

Guides are articles about key events and topics. Many were written to accompany annual releases of Mrs Thatcher’s private and party papers at the Churchill Archive Centre in Cambridge.

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