The New York Police Department is asking for the public’s help in locating a Norman Rockwell painting that sold for over a $1 million at Sotheby’s in May. Sport, which appeared on the cover of The Saturday Evening Post in 1939, was being kept in a storage warehouse in Queens. Police said that the painting went missing last month.

While the buyer has not been identified, the painting was sold from a private collection in Birmingham, AL. The oil on canvas painting, which features a fisherman clad in a yellow raincoat in a boat, will be nearly impossible to sell if the alleged thief is hoping to turn a profit.