A team of specialists is trying to prove that a canvas bought for less than $50 was painted by the iconic artist—and is worth $15 million.

A painting bought for $50 at a garage sale could be a Vincent van Gogh work worth $15 million, according to experts.

If this painting is a Van Gogh, it would be number 151 from that series. It portrays a fisherman wearing a round hat, smoking ...