It is being rumored that Alice Walton, the Walmart heiress and founder of the Crystal Bridges Museum of American Art in Bentonville, AK, purchased Andy Warhol’s Coca-Cola (3) from Christie’s in November. The painting sold for $57.2 million during the auction house’s Post-War and Contemporary Art Evening Sale. The price is more than Walton has been known to have ever spent at an auction.

The work is one of only four paintings of a single Coca-Cola bottle made by the Pop artist between 1961 and 1962. Coca-Cola (3) was being offered by New York art dealer Jose Mugrabi and was expected to garner between $40 million and $60 million.

A representative for Walton would neither confirm nor deny the purchase.