LONDON.- A rare early colour image of Vincent van Gogh’s Six Sunflowers has been tracked down in Japan. It reveals that Van Gogh designed a bold orange frame for his still life. The framed painting, once in a private Japanese collection, was destroyed in an American bombing raid during the Second World War. This newly discovered image is from a very scarce portfolio produced in Tokyo in 1921, which has escaped the attention of art historians. It is reproduced in The Sunflowers are Mine: The Story of Van Gogh’s Masterpiece, by Martin Bailey, to be published by Frances Lincoln on 5 September.