The collection comprises manuscript notebooks, printed pamphlets, correspondence, a minute book, and photographic and other catalogues, 1768-1970. These notably include notebooks containing descriptions and viewing data relating to astronomical observations carried out at Kew Observatory, Richmond, Surrey, on behalf of King George III, with a printed pamphlet by Nevil Maskelyne, Astronomer Royal, entitled Observations of the transit of Venus over the Sun , 1768-1769; manuscript notebook containing measurements recorded during a test of the accuracy of the H5 chronometer designed by John Harrison, 1772; manuscript notebooks recording daily temperature, barometric, hygrometric and rainfall readings taken at Kew Observatory, Richmond, Surrey, 1773-1840; a printed pamphlet by George Atwood, Fellow of the Royal Society, entitled A Supplement to 'A treatise on the construction and properties of arches' (London, 1804), with manuscript dedication to King George III and related correspondence, 1804-1805; a folio signature book of visits by dignitaries to the George III Museum, 1843-1929; manuscript diary describing the work of the George III Museum including the upkeep of equipment and use of exhibits in experiments, 1850-1880; manuscript minutes of the George III Museum Committee charged with managing the collection, 1880-1885; catalogues relating to the collection, [1841-1970]; correspondence by George Calver, astronomer, relating to telescope design, 1897; series of copper plates and labels advertising the George III Museum, [1841-1926].

Typescript copy of Meteorological Office paper With Wind and Sword: the story of meteorology and D-Day, a detailed examination of the Meteorological Office's role in the preparation and execution of Operations NEPTUNE and OVERLORD, the Allied preparation and subsequent invasion of France, Jun 1944, including weather pattern charts, weather forecasts, and memoranda and reports from the Chief Meteorological Officer, Meteorological Office, to Supreme Headquarters Allied Expeditionary Force (SHAEF). Collection also includes two copies of the Meteorological Office pamphlet, '6 June 1944: D-Day: the role of the Met. Office', (Meteorological Office, Bracknell, 1994)