LONDON.- A rare signed proof copy of David Hockney’s lithograph ‘An Image of Celia’ in the original frame hand painted by the artist is the star item in sale dedicated to Hockney’s work at Bonhams on 20 April. Dating from the mid-1980s, the Picasso-like image of Hockney’s close friend, the textile designer Celia Birtwell, is estimated at between £60,000- 80,000. It leads a sale which covers the whole spectrum of Hockney’s output and techniques from the early ‘Fires of Furious Desire – The Most Beautiful Boy in the World’ of 1963 (£4,000-6,000) to his ‘Lithograph of Water’ from the late 1970s (315,000-20,000); three huge and stunning variations of ‘Hotel Acatlan’ executed in the mid 1980 (estimates range from £15,000- 30,000) and ‘Winter Road near Kilham’an Inkjet printed computer drawing from 2008 (£10,000-15,000).