Dates: 1910-1941. Size: 9 linear feet, includes 111 posters in 18 oversize folders. Chicago Public Library, Harold Washington Library Center, Special Collections. The collection contains 20th century posters from Chicago, North America and international destinations. The chromolithographic posters employ graphic design and illustration to advertise tours, travel agents, and transportation to destinations by railroad as well as ship and bus lines. [Finding aid]