Imagine discovering that a painting on your wall is a long, lost masterpiece. In two recent cases, the story centers on Jacob Lawrence, a pioneering American modernist painter. Lydia Gordon, of the Peabody Essex Museum in Salem, Massachusetts, is our guide, as part of our arts and culture series. Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG Find more from PBS NewsHour at https://www.pbs.org/newshour Subscribe to our YouTube channel: https://bit.ly/2HfsCD6 Follow us: Facebook: http://www.pbs.org/newshour Twitter: http://www.twitter.com/newshour Instagram: http://www.instagram.com/newshour Subscribe: PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts Newsletters: https://www.pbs.org/newshour/subscribe