“What does it take to revive a masterwork?” Michael Gallagher on conserving Charles Le Brun’s Everhard Jabach and His Family

Charles Le Brun (French, 1619–1690). Everhard Jabach and His Family, ca. 1660. Oil on canvas; 110 1/4 x 129 1/8 in. (280 x 328 cm). The Metropolitan Museum of Art, New York, Purchase, Mrs. Charles Wrightsman Gift, in honor of Keith Christiansen, 2014 (2014.250)