5.5x11.5" thin paper handbill for April 28, 1967 concerts in Slough, England at the Adelphi Theatre. Concert was headlined by The Fabulous Walker Brothers (who are pictured) w/Cat Stevens and Jimi Hendrix (both of whom are also pictured). Additional acts included The Californians, Nicky Jones, The Quotations (The Walker Brothers' backing band) w/special guest star Engelbert Humperdinck. This concert took place just over a month before the UK release of The Jimi Hendrix Experience's debut album "Are You Experienced." Complete w/postal booking form at bottom, unused and designed to be removed to be sent away for tickets by mail. Handbill shows some lt. wear at corners. VF/Exc. Scarce early handbill.