By Elizabeth Howcroft LONDON (Reuters) - Auction houses Christie's, Sotheby's and Bonhams have cancelled sales of Russian art in London in June, part .
By Elizabeth Howcroft LONDON (Reuters) - Auction houses Christie's, Sotheby's and Bonhams have cancelled sales of Russian art in London in June, part .
By Elizabeth Howcroft LONDON (Reuters) - Auction houses Christie's, Sotheby's and Bonhams have cancelled sales of Russian art in London in June, part .