A portrait from the 17th century, painted by the renowned Dutch artist Rembrandt, was found in an attic in Maine and sold for an impressive $1.4 million, setting a new record for sales in the state.

The artwork, known as “Portrait of a Girl,” was sold to the highest bidder during an auction held at the Thomaston Place Auction Galleries in the quaint town of Thomaston, located in southern Maine. This auction broke the previous records for any sale held in the state, as reported by the auction house.

The painting features a young girl dressed in traditional Dutch clothing, complete with a white collar and cap, exuding a calm expression. According to Kaja Veilleux, the founder of Thomaston Place, this “once-in-a-lifetime discovery” was made in an attic near Camden, about 12 miles from the auction location.

“We usually go into home visits without knowing what treasures we might come across,” Veilleux commented in a news release.

The Rembrandt artwork was previously exhibited in 1970 at the Philadelphia Museum of Art, and the auction house highlighted that it was framed with intricate craftsmanship.

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“Among all the phone bids I’ve processed, I never thought I would be closing a transaction exceeding one million dollars,” auctioneer Zebulon Casperson remarked in the news release. “It feels like a collective success.”

According to Veilleux, the painting was found during a standard visit, as the auction house reported.

“The home had numerous exquisite items, but it was in the attic, among piles of artwork, that we unearthed this extraordinary portrait,” he explained to Fortune.