LONDON.- Several works by the renowned graffiti artist Banksy are to be sold at Bonhams, New Bond Street, as part of its Urban Art sale on 21 September 2011. Leading the way is a work featuring one of Banksy’s most iconic images, the monkey, entitled Monkey Detonator, which has attracted a pre-sale estimate of £70,000 – 90,000. Executed in 2000, this canvas displays the typically dark sense of humour which has endeared Banksy to both art collectors and the general public. Other original Banksy’s featured in the sale include HMV Dog (estimate £10,000 – 15,000); Precision Bombing (£15,000 – 25,000); Watchtower Collaboration – Blu (estimate £10,000 – 15,000); and Balloon Girl (estimate £20,000 – 30,000).