An extremely rare 1967 English concert poster advertising a very early show by Peter Green's Fleetwood Mac with The Syn, the psychedelic group featuring future Yes members Peter Banks and Chris Squire, along with Justins and the Delroy Good Good Band at the University of Sussex's Falmer House. This was very early in the Mac's career, predating their 1968 debut album. Great Union Jack artwork. Printed on thin slick paper, measuring 19 1/2" x 30". In VG++ condition, with some handling and a small tear in the upper left corner. The only example we know to have survived !