This thread seems to have wandered a bit, though in the course of doing so it has turned up that brilliant lyric about the Birmingham bombings.
Going back to the original query --- there was a broadcast made from the Jug of Puncvh at about that time. It was broadcast live from the Club, but it was recorded, because it was subsequently repeated on the air. I think, from memory, that it was recorded for and broadcast on the BBC Radio Forces Network originally and then repeated at home. The performers in the broadcast were the Ian Campbell Group, Jenny Wilson (?) and myself.
Might Ian Campbell have a copy of it?