Turner Auctions has WWI posters in its sights May 30SOUTH SAN FRANCISCO, Calif. – Turner Auctions + Appraisals will present the Hilman Walker Collection, showcasing an array of French posters from World War I and American posters from World Wars I and II on Saturday, May 30. The sale also offers other war-era lithographs by Lucien-Hector Jonas; a large replica of the USS Mahan […]