DD081659 is a memo to Desmond Briscoe consisting of the pencilled summary of a phone call from Robin Gwynn about Science All Around - Sound and some notes in other hands, ultimately forwarded to Delia.
Des. Robin Gwynn T V Schools rang Room 708 Villiers House EXT 264 Doing a prog on Shnadlies plate . wants a tune based on resonant freq of the plate. I said you would get someone to ring him. He wants to film in 7 - 10 days proj no . 2911/1202 [in biro in another hand:] TRW 7420 Week 22 if on film End of " 24 if in Studio live (in Studio 23rd JUNE) DD to phone pm [in a different biro in Desmond Briscoe's hand:] Delia, Could you please try to fit this in. DB