Michael Ayrton: Oracle Astride pen & wash drawing. 48 x 38cms. Framed (73 x 61cms). Signed & dated 4. 3. 63. Exhibited Grosvenor Gallery 1964 and Goldmark Gallery. The drawing is on 2 sheets; presumably Ayrton was unhappy with the original right hand side, and has overlaid it with his preferred image.