BY DEBORAH VANKIN LOS ANGELES TIMES April 24, 2021 13 A ceiling painting in Union Station's entry vestibule was discovered in 2017 as part of an eight-year restoration. The newly restored station will host the Oscars this Sunday and opens to the public on April 29. (Jason Armond/Los Angeles Times/TNS) Restoration workers at Union Station on Monday, February 22, 2021, in Los Angeles. (Jason Armond/Los Angeles Times/TNS) It was after midnight on a June evening in 2017 when the discovery was made. Union Station’s entry vestibule – an ode to Mission Moderne architecture, with its Spanish tile floor and draping Art Deco chandeliers – was virtually deserted. A restoration cleaning crew was wiping down the tarnished ceiling panels, dim, brownish squares that hadn’t been cleaned in nearly 80 years and were so caked with tobacco tar and dirt that they appeared to be solid wood rather than painted plaster.