The recording is now held at the British Library Sound Archive.
There was nothing in the British archives which could be used as evidence against the Turkish detainees at Malta.
The British Library Sound Archive has 150,000 recordings of over 10,000 species.
As of 2004, however, access to some material in British, Polish and ex-Soviet archives was still restricted.
The British Library Sound Archive holds more than a million discs and 185,000 tapes.
His recordings and manuscript papers are preserved in the British Library Sound Archive.
Thirty of his radio interviews and contributions are housed in the British Library Sound Archive.
Yet Davies says he is frustrated at how disappointingly little is available from either Russian or British archives.
It was later renamed the British Library Sound Archive.
From 1980, with the opening of the Israeli and British archives, some Israeli historians have developed a different account of the period.