Clark & Dearborn Bike Lane Rush Only 1970's!

Does anyone have any photos or info about bike only lanes that ran down Clark and Dearborn in the 1970's?

Anything would be great, thanks!

"In May 1971, Daley unveiled a 34-mile bicycle route, and, in August 1972, he inaugurated rush-hour bicycle lanes on Clark and Dearborn Streets. During the 1970s, soaring gas prices and heightened concern about energy and air pollution bolstered public support for Daley's bicycling programs. " -
http://www.encyclopedia.chicagohistory.org/pages/136.html