quote:

A sketch purchased for $30 at a house clearance sale in Massachusetts is believed to be a rare artwork worth as much as $50 million, reports say.

Experts identified the drawing of a mother and child as an original by German Renaissance artist Albrecht Dürer, The Art Newspaper reported.

An unnamed man purchased the sketch in Concord, Massachusetts.

The drawing had belonged to the late architect Jean-Paul Carlhain, whose children mistakenly believed it was a 20th-century reproduction of a Dürer.