Sotheby's auction of $180m Van Gogh challenged over claims it was 'sold under duress'
Sotheby's says it will work with the heirs of a family who had previously owned the artwork to try and reach a solution.
Source: BBC News ·

Sotheby's says it will work with the heirs of a family who had previously owned the artwork to try and reach a solution.
Source: BBC News ·
