Cambridge Folk Festival
1989

This is impossible to find 'new' - I buy all my rarities from ebay, but I recommend observing before bidding - prices vary considerably.
Check if there's a copy for sale. Most of the tracks are available on studio and compilation CDs.

'Antarctica', ' Josephine Baker' are on "Last days of the Century"

1988

'Manuscript ' is on "To Whom It May Concern"

1966-70

'Time Passages' is on "Time Passages"

1978

'Nostradamus', 'Roads to Moscow' are on "Past Present and Future"

1974

'If It Doesn't Come Naturally', 'On the Border', 'Year of the Cat' are all on "Year of the Cat"

1976