Chicago / United Air Lines. Circa 1950. Color offset lithograph airline poster. This poster is unsigned, but attributed to Joseph Feher (1909 ? 1988), as part of a series of United posters by Feher from the early 1950s. The illustration depicts Michigan Avenue Bridge swinging upward to allow clearance for a boat to pass, with the Wrigley Building and Tribune tower set against a green sky and a United DC-6 flying overhead. The poster is scarce, with just four copies appearing at auction. Linen backed. Short repaired tears at edges, minor touch-up at edge. B+. 39 7/8 x 25".