Media playback is unsupported on your device Media caption Tony Baxter from The Sincura Group told the BBC's Will Gompertz that the auction is a chance for the work to stay in the UK 
 
 A Banksy artwork that went missing from a wall in north London is being auctioned for a second time. 
 
 The mural Slave Labour was taken from Wood Green in February. It later appeared at a Miami auction, but was withdrawn after protests. 
 
 The graffiti art has been offered for sale in London by the Sincura Group. The minimum bid is £900,000. 
 
 MP Lynne Featherstone has urged the owners of the mural to give it back to the residents of north London. 
 
 The mural, which depicts a boy hunched over a sewing machine making union jack bunting, appeared on the side of a Poundland store in May 2012, just before the Diamond Jubilee celebrations. 
 
 'Community deprived' 
 
 It was being auctioned at the London Film Museum in Covent Garden on Sunday evening, but the final sale price has yet to be announced. 
 
 Sincura said the mural had been "sensitively restored" and if the piece did not reach the reserve price it would be sold to a collector in the US. 
 
 You have this one last chance to do the right thing Lynne Featherstone MP 
 
 Tony Baxter, director of the Sincura Group, said he could not divulge the owner of the piece but insisted it was being sold legally. 
 
 He said there was a chance the work would leave the UK unless an "angel" bought it and put it in a museum. 
 
 But Ms Featherstone, Liberal Democrat MP for Hornsey and Wood Green, said: "This is admirable, perhaps, but also incredibly optimistic. 
 
 "So now I make this direct plea to the owners of the Banksy piece: You have this one last chance to do the right thing. 
 
 "You have deprived a community of an asset that was given to us for free and greatly enhanced an area that needed it. 
 
 "I call on you, and your consciences, to pull the piece from both potential sales and return it to its rightful place." 
 
 When the Bristol artist's mural was up for auction in Miami, it was expected to fetch up to £450,000. 
 
 It was suspected the work had been stolen when it disappeared, but the Metropolitan Police said there were "no reports of any theft". 
 
 Six identical copies of the mural reportedly appeared in Wood Green on Saturday morning, 36 hours ahead of the auction. 
 
 According to The Sun, the replicas - painted on polystyrene - were left outside the same Poundland store where the original appeared. 
 
 The Metropolitan Police confirmed to the BBC that one of the replicas was later confiscated from a member of the public. 
 
 If no-one claims the copy, it too will be auctioned. ||||| Photographer: Peter Macdiarmid/Getty Images A man takes a phone photo of an artwork attributed to Banksy. The stencilled image,... Read More A man takes a phone photo of an artwork attributed to Banksy. The stencilled image, depicting a poor child making Union Jack flags on a sewing machine, was located on the wall of a Poundland discount shop in the Wood Green area of north London. The artwork was later removed and has been offered for sale, first in Florida and now in London. Close Close Open Photographer: Peter Macdiarmid/Getty Images A man takes a phone photo of an artwork attributed to Banksy. The stencilled image, depicting a poor child making Union Jack flags on a sewing machine, was located on the wall of a Poundland discount shop in the Wood Green area of north London. The artwork was later removed and has been offered for sale, first in Florida and now in London. 
 
 A mural by Banksy which divided the art world after being removed from a London street sold last night at a private event in London for more than 750,000 pounds ($1.1 million), according to the event organizers. 
 
 The 2012 spray painting “Slave Labour,” showing a boy making Union Jack bunting with a sewing machine, was being shown by the Sincura Group, a concierge company, at a members-only event in the basement of the London Film Museum in the Covent Garden area of the U.K. capital. 
 
 The work’s sale, earlier planned for an auction in Florida, enraged street art enthusiasts who argue that Banksy murals are gifts to communities and should remain in situ. Others point out that unsolicited graffiti becomes the property of the building owners, who are legally entitled to do what they want with them. 
 
 Prospective buyers had been invited to make offers for the painting of more than 900,000 pounds in a 3½-hour silent auction that closed at 9:30 p.m. Invitees sipped Taittinger champagne and listened to house music as they admired the newly-framed mural flanked by a pair of security guards. 
 
 At the end of the event, Sincura had received three bids of more than 750,000 pounds, the London-based dealer Robin Barton, who was representing the restored mural’s owners, said in an email. He is meeting the owners to evaluate the bids before making any further announcement, he said in a second e-mail. 
 
 Miami Sale 
 
 The Banksy had been stenciled on the wall of a Poundland store in London. It was removed in February and reappeared in the Feb. 23 sale by Fine Art Auctions in Miami, estimated at $500,000 to $700,000. The lot was withdrawn at the last moment, following objections from Haringey Council and street-art fans. 
 
 Barton, whose Bankrobber dealership specializes in Banksy, said in an e-mail on May 30 that a U.S.-based collector had already offered to buy the painting for $1 million and that he expected it to sell for a higher price with Sincura. 
 
 “Our goal is to find a buyer who will keep it in the U.K.,” Tony Baxter, director of the Sincura Group, said in an interview before the sale. “We know the sale of this Banksy has caused great controversy. We’ve done our due diligence and there is no legal issue.” Baxter said he wouldn’t be charging any fees for the auction of the mural. 
 
 “Slave Labour,” satirizing Queen Elizabeth’s Diamond Jubilee, was being shown among a group of about 40 works by Banksy, Andy Warhol, Damien Hirst and Mario Testino. Most of the pieces were lower-value prints, though a signed 2001 Testino photograph of Kate Moss, from an edition of three, was priced at 125,000 pounds. 
 
 Pest Control 
 
 Bristol-born Banksy is the world’s most famous and expensive urban artist. A canvas by him sold for a record $1.9 million at auction in February 2008. In that same year, he introduced an authentication service, Pest Control, intended to regulate the market for his paintings and street murals. 
 
 He hasn’t authenticated “Slave Labour,” in common with other works sprayed without permission in public places. While Banksy is a widely imitated artist, experts said the work is clearly his. 
 
 “None of the major auction houses will touch a Banksy street piece without his certification,” said Mike Snelle, director of the London-based urban art dealers, Black Rat Press. “This event was supposedly about trying to find a U.K. buyer to keep it in the country. I didn’t sense much of a community feeling behind this.” 
 
 Owners Named 
 
 The painting first appeared in the Wood Green area of north London. It was on a building is owned by Wood Green Investments, a property company registered at Woodford Green, Essex, according to the U.K. registry, Companies House. Its co-directors are named as Robert Alan Davis and Leslie Steven Gilbert, both based in Essex. 
 
 Barton said in an email that Davis and Gilbert owned the Banksy mural and that he had arranged its sale in London. 
 
 “These paintings do not need certification,” said Barton. “If one takes the view that Banksy has made a significant contribution to 21st-century art history, then this is best represented through his visceral street works, often created in the dead of night with the threat of arrest ever present. The stencil and sprayed canvas works are a poor imitation of the real thing.” 
 
 Muse highlights include Scott Reyburn on the art market, Martin Gayford on European art shows, Elin McCoy on wine and Jeremy Gerard on U.S. theater. 
 
 To contact the writer on the story: Scott Reyburn in London at sreyburn@hotmail.com. 
 
 To contact the editor responsible for this story: Manuela Hoelterhoff at mhoelterhoff@bloomberg.net.
– A Banksy mural taken from a wall in north London was sold for over $1.1 million at a private auction last night. The piece, "Slave Labour," of a young boy sewing Union Jack flags, was sprayed onto the side of a store in 2012. It was removed in February this year, and was supposed to be sold off at an auction house in Miami, but was pulled from the auction at the last minute amid protests. But the sellers weren't fazed this time: the piece pulled in three bids over $1.1 million by champagne-sipping collectors at the members-only event, reports Bloomberg. Legally, graffiti is the property of the owner of the building it is painted onto. But many street art fans claim the pieces are intended to be enjoyed by the public, and should remain the property of all. One British politician called for "Slave Labour" to be returned to its original location. "You have deprived a community of an asset that was given to us for free and greatly enhanced an area that needed it," she said, as per the BBC. "I call on you, and your consciences, to pull the piece from both potential sales and return it to its rightful place."