Prototype beam splitter for the Advanced Laser Interferometer Gravitational Wave Observatory (aLIGO) Astronomy 2008 (prototype)
Brass quadrant by Peter and John Dollond of 18-inch radius with optical sights on a tripod Astronomy 1780-1820
Accessories for Newtonian reflecting telescope made by William Herschel for the Radcliffe Observatory Astronomy 1812
Trophy awarded to Sir Patrick Moore commemorating his 700th episode of The Sky at Night Astronomy 2011
Six-foot speculum [metal] mirror on travelling carriage from the Great Rosse Telescope, the 'Leviathan of Parsonstown', built by the Third Earl of Rosse at Birr, Ireland, 1844-46. Mirror for the Great Rosse Telescope, 1844-1846 Astronomy 1844-1846
Horary quadrant consisting of front and reverse paper scales and wooden board made by Henry Sutton, Threadneedle Street, London, 1658. Horary quadrant by Henry Sutton Astronomy 1658