DD081157 is a letter from Robina Gyle-Thompson to Delia about The Living World dated 22nd August 1968.
Delia Derbyshire, Assistant, Radiophonic Workshop. 9, Maida Vale, M.V.277 22nd August, 1968. LIVING WORLD - SIGNATURE TUNE Robina Gyle-Thompson, Producer, Natural History Unit, Bristol. I'm afraid your letter got into the external instead of the internal mail and so took a week to get here - anyway thanks for the information. I'll be expecting to hear from John Sparks in the near future.