A California family is stunned at the recent sale of a painting that had hung for years in their home. The painting, which the seller had inherited from her grandmother, turned out to be a purported masterpiece by 17th-century Italian artist Pier Francesco Mola and was sold for unexpected price of $620,900.

The unsigned painting, which shows a bearded man working on some papers, was sold Sunday by Clars Auction Gallery in Oakland to an unnamed New York dealer, who stood by the belief of art experts that it was the work of Mola, that may have been lost years earlier.

According to AP reports, the woman decided to auction the painting with a hope to get a few thousand dollars to pay for her daughter's college tuition.