History of Bonhams and Butterfields, an Art Auction House:
Bonhams auction house was established in 1793. In August 2002, Bonhams acquired Butterfields.
Bonhams and Butterfields specializes in "the appraisal and sale of fine art, antiques and objects in all collecting categories. Both Bonhams and Butterfields have grown from modest origins to the current ranking as third largest auction house in the world, and continue to grow through a commitment to exceeding client expectations."