This October, Banksy's 13ft-long painting ‘Devolved Parliament,’ which depicts British politicians as chimpanzees in the House of Commons, will go up for sale at London auction house, Sotheby's, The Guardian reports.

Created in 2009, ‘Devolved Parliament’ is the artist's largest known work on canvas. It is estimated to fetch between £1.5 million - £2 million (approximately $1.9 million to $2.5 million), which could set a new auction sale record for the artist. Banksy's previous high was set in 2008 when Damien Hirst's spot painting 'Keep It Spotless,' over which Banksy had stenciled a maid cleaning, sold for $1.9 million.

'Devolved Parliament' will be exhibited in Sotheby’s from September 28 ahead of its auction on October 3.

The sale comes exactly a year after Banksy created a new work during a Sotheby’s auction, when Girl with Balloon auto-destructed before a live audience immediately after selling for £1 million (approximately $1.4 million at the time).

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