DAVID HOCKNEY (B. 1937) Untitled No. 516, from: A Bigger Book: Art Edition D iPad drawing in colours, 2010-2016, on wove paper, signed, dated '10 and numbered edition of 250 in pencil, co-published by the artist and Taschen, Berlin, with their blindstamp; together with the original blue fabric-covered portfolio, the publication A Bigger Book, signed in black ink on the title-page, copy number of 1000 edition (one of four editions of 250 lettered A-D, there was also a book edition of 10,000 without an iPad drawing), and the accompanying Marc Newsom stand Image 439 x 330 mm. Sheet 558 x 431 mm. Book 711 x 508 x 86 mm.