John Mayall Blues ConcertOriginal vintage music advertising poster for The Legendary John Mayall And His Blues Group featuring a great design by Gunther Kieser (b. 1930) depicting the face of the English blues rock musician John Mayall (b. 1933) blending with the leaves on a large tree with hills in the distance and the stylised title lettering below. Large size. Good condition, creasing, fold, tears, pinholes, small paper losses on edges, minor staining.