The leadership of the Archaeological Institute of America (AIA) has once again condemned the St Louis chapter of its organization for consigning artifacts to auction. Held by the society since 1911-12, the two objects, a Mayan vase from Quiriqua in Honduras (est £3,800-£5,000) and a Zapotec urn from Monte Alban, Mexico (est £1,900-£3,100) are due to be sold at Bonhams, New York, on 12 November. Last month, the group put up its “Harageh Treasure” of Egyptian artifact for auction at Bonhams London, but the collection was pulled at the last minute and privately acquired by the Metropolitan Museum of Art for an undisclosed sum.