POSTCARD - CHICAGO - FIRST SUBWAY - STATE STREET - TRAIN PLATFORM AND TRAIN - NOTE: CHICAGO NEVER DID BUILD MUCH SUBWAY - IT DEPENDED, STARTING IN THE EARLY 1890s, ON THE ELEVATED RAPID TRANSIT (THE "L") - LATER IT WAS AN INNOVATOR IN BUILDING RAPID TRANSIT LINES DOWN THE CENTER MEDIANS OF EXPRESSWAYS - HOWEVER CHICAGO ALSO HAD A REMARKABLE PARALLEL SYSTEM OF REGIONAL COMMUTER RAILROADS WHICH IN PART ALSO SERVE THE CITY SINCE AT LEAST THE 1920s - MANY OF THESE WERE ELECTRIFIED FROM THE START AS THE ILLINOIS CENTRAL COMMUTER (THE "IC") AND THE CHICAGO SOUTH SHORE AND SOUTH BEND COMMUTER ("THE SHORE LINE") - THERE WERE SUCH COMMUTER RAILROADS FANNING OUT IN MANY DIRECTIONS (ROCK ISLAND LINE, NORTH SHORE LINE, NORTHWESTERN COMMUTER) - OF COURSE THEY WERE BASED ON THE HUGE TRACKAGE OF WHAT WAS THE WORLD'S GREATEST RAILROAD CITY FOR SOME TIME - TINTED - NICE VERSION - 1947