It's been colourised but this looks like brand new footage to my eyes. By all accounts it's from their August 21st 1970 appearance in Beguinage, Bilzen, Belgium. Other artists appearing were Annie Ross, Arthur Conley, Babs Robert, Badfinger, Black Sabbath, Burning Plague, Cat Stevens, Dizzy Gillespie, Eddie Boyd, Etienne Verschueren, Freddie Hubbard, Guy Mortier, Jan Ptaszyn Wroblewski, Johnny Dover, Kevin Ayres, Kleptomania, May Blitz, Pierre Favre, Rare Bird, Screaming Lord Sutch, Stu Martin, The Humblebums, and The Wild Angels.
Badfinger and Humblebums footage would be amazing. Any knowledge on the survival of other footage or more footage even?