- 1File of photographs and papers relating to Radio 2ZY programmes (YA2000.33/3)
c 1923 - 1979, file - 2A History of Research in the Metropolitan-Vickers Electrical Company, with photographs (YA2000.33/10)
August 1952, item - 3David Teasdale Papers and Photographs Relating to Early Radio Broadcasting and Radar Development (YA2000.33)
1922-1949, fonds - 4Photograph of 2ZY radio transmission equipment (YA2000.33/3/10)
1922 - 1923, item