What would you do if a total stranger called claiming he owned the earliest photograph of a U.S. president? For Sotheby’s Global Head of Photographs, Emily Bierman, she assumed it was a long shot. But as she followed the trail—an obscure family gift, a misidentified label, decoding century-old handwriting—the story started to unravel something far bigger: the oldest surviving photograph of an American president. In this episode of Sotheby’s Stories, Emily takes us behind the scenes of how she solved a real-life art and history mystery that begins with a single phone call and leads to a historic revelation of the first known photograph of John Quincy Adams. How do you prove the impossible? And what happens when history resurfaces in the most unexpected place? And why are his socks so cute? Still haven’t subscribed to Sotheby’s on YouTube? ►►youtube.com/sothebys/sub_confirmation=1 Watch MORE Sotheby's Stories ►► youtube.com/playlist?list=PL9LyZcEeKzXpDtp7BChFd2Ydt...