Collection name: Royal Greenwich Observatory Audio-Visual Records; Subjects: Oral History; Documentary & News; Drama & Literature; Radio; Speeches & Events: The collection comprises approximately 150 hours of ‘tape’, including film reels and video, chiefly from 1974-1987. It includes:. 1. Four series of oral history interviews: interviews with past staff of the Royal Observatory about its work and nature, with astronomers at the Observatory, and with staff during site testing for the Northern Hemisphere Observatory, La Palma. 2. Documentary & News: Conferences at RGO on astronomy; copies of radio programmes on astronomy and RGO, and features on the relocation of the RGO, the 1954 Eclipse, and Halley's comet. 3. Drama & Literature: Copies of plays on BBC Radio 4 based on the work of Edmund Halley and Charles Babbage.; items: 2 Shellac Disc, 5 Open Reel Tape, 131 Compact Cassette, 1 MiniDisc, 11 Audio CD-R,