The magazine New International, in 1950, advertises a series of "wire-recordings for socialist education". They include a recording of a debate between Max Shachtman and Frederick von Hayek, on socialism vs capitalism, in February 1950.
If these recordings still exist, they would be of great interest - especially today, when many of Hayek's ideas have become the ruling orthodoxy.
The other advertised recordings are:
If you know of any copies of these recordings, please contact us [1].
Links:
[1] mailto:office@workersliberty.org