List of domestic service broadcasts by Koch 1945-1958, lists of recordings, drafts, notes, correspondence, recording reports, programme reminder diary. Undated document(s)
Correspondence regarding messages to royalty, stocks and shares, talks to schools, book publishers, Harrow philarmonic choir, solicitors over loss of recordings in post, Royal photographic society
Correspondence with BBC regarding Koch's retirement
Scope & Content:
Correspondence with the BBC regarding his displeasure at forced retirement and recording ownership problems, and with other publishers regarding Koch's soundbooks