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