A Banksy stencil mural has been put up for auction on a US website with a guide price of up to £450,000, after disappearing from a wall in North London.

The work, painted on the side of a Poundland shop, depicts a barefoot boy using a sewing machine to stitch union jack flag bunting. It has been widely interpreted as mocking the impending Queen’s diamond jubilee celebrations and condemning child labour, after Poundland was at the centre of a child labour controversy three years ago.

Local councillor Alan Strickland said local residents were angry at the removal and urged people to email the auctioneers to demand that it be removed from the Fine Art Auctions Miami sale. He told the BBC, “Banksy gave that piece of art to our community, and people came from all over London to see it.”

Banksy’s spokesperson has been contacted for comment but has yet to respond. In the past, Banksy has declined to authenticate works attributed to him that were up for auction because of a belief that street work should remain in its original location.