Rembrandt's The Adoration of the Kings was valued at $15,000 two years ago as it was believed to be painted by one of the Dutch master's students. Photo: Sotheby's
Rembrandt's The Adoration of the Kings was valued at $15,000 two years ago as it was believed to be painted by one of the Dutch master's students. Photo: Sotheby's

A $15,000 painting is now expected to fetch millions after it was found to be a Rembrandt