A painting once believed to be a $25 copy caught the eye of an art historian during the filming of a new BBC series — and turned out to be a $26 million Raphael. The Madonna composition had been covered in dirt and hanging above a door in the dusty corner of a room in the Haddo House, one of the National Trust for Scotland’s 18th-century homes in Aberdeenshire, Scotland. “I thought, crikey, it looks like a Raphael,” the historian, Bendor Grosvenor, told The Guardian. “It was very dirty, under old varnish, which goes yellow.”