Photo: Alamy

A piece of artwork purchased at a yard sale in Massachusetts for $30 has been discovered to be one of the drawings belonging to a prominent artist from the German Renaissance — and is now estimated to be worth at least $10 million.
The employee at the bookstore told him about a Dürer drawing that his friend had and asked if Schorer would offer his expert opinion on the piece. He agreed despite having little hope since the artist’s last drawing of “caliber” was discovered over a century ago, he said.
“It was like [experiencing] a kind of electricity. When you’re in my world, you spend your life looking for unknown things that lead to fascinating research avenues … and I could see I was at the beginning of something extremely exciting,” Schorer told CNN.
Universal History Archive/Universal Images Group via Getty

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It took three years and multiple flights to various destinations around the world to verify the artwork, including a discussion with experts at the British Museum in London in December.
After going through technical age analysis, it was proven that the drawing is Dürer’s work. Schorer said he believes it is worth “eight figures” and above $10 million.
Schorer added of Dürer, “It’s probably fair to say he’s one of the greatest graphic designers that ever lived — a pioneer in engraving and drawing. He was a maestro in black and white, and his famous prints … inspired artists all over the world.”
source: people.com