“Missing for nearly 140 years, a painting of the Yosemite Valley by the widely admired landscapist Albert Bierstadt (1830-1902) has been found and put on display at the Corcoran Gallery of Art in Washington — along with two curious copies that at first glance seem indistinguishable from the original.” One of the copies is a chromolithographic print of the original, albeit a high-quality one. The other is an actual hand copy by an anonymous New York art student. The Corcoran doesn’t go out of its way to point out which painting is the genuine article, but doesn’t completely hide it either.