The National Institute of Anthropology and History said Wednesday that Mexico has sent a diplomatic note to the French government seeking assistance in heading off the auction scheduled in Paris for Friday and Saturday.
It also implied that some of the artifacts offered in what is known as the 300-piece Barbier-Mueller Collection of Pre-Columbian Art are fakes or imitations.
Still, the genuine pieces are important to Mexico.
Sotheby's issued a statement Thursday saying it “has had dialogue with several nations and given careful consideration to their concerns about this sale, and we continue to welcome discussion regarding any new information on specific issues.”
The auction house said that over six months, it “thoroughly researched the provenance of this collection and we are confident in offering these works for auction.”
Sophie Dufresne, Sotheby's spokeswoman in Paris, said: “The sale is going forward as planned.”
A description of the pieces listed on Sotheby's Paris website describes the collection as containing pre-Hispanic sculptures in wood and stone, ceramics, textiles and ritual objects from Mexico, Central America and South America, saying the collection is “representative of all the leading pre-Columbian cultures.”
The Sotheby's website says the collection was started by Josef Mueller in 1920. “He became attracted by important works of pre-Columbian art, his first purchase being an Aztec `water goddess’ in Paris in 1920,” it says.
The description says Mueller’s son-in-law, Jean Paul Barbier-Mueller, augmented and broadened the collection.
“The Mexican government has consistently expressed its objections to the international trade in protected cultural objects, particularly archaeological artifacts, and stresses that such practices strip these unique objects of their invaluable cultural, historical and symbolic essence, converting them into mere merchandise and curios,” the institute said.
Under a 1972 law, Mexico prohibited the purchase and sale of archaeological pieces, but allowed some previously existing collections to remain in private hands if they were registered with the government.