i got this off a bootleg dvd from chicago 1970. Considering the age of it its whatchable
(http://club.alembicguitars.net/Images/449/145126.jpg)
Sure the year is right?
Gotta be 1974 - 1976.
From the Jacket, I'd say 1975.
Love to know more about that DVD . . . too. Are you able to share info on where/how you got it?
that website is no longer active
i must have downloaded 75 performances from various artists while they were up
even have some b&w dead