This record has been posthumously released on Rolling Stones Records™ in 1971, it must haven been one of the label's first releases. Maybe as a tribute to an 'absent friend'?
Unfortunately the date of Brian Jones' session with the 'Pipes of Pan' isn't statet anywhere, but it must have been before 1969-07-03.
This gate fold cover oozes out Moroccan traditional spirit. The inlet brings, beneath a winning portrait of Brian at the front page, a description of the magical Rites of Pan Festival celebrated by the Master Musicians of Joujouka.