This from Steve Redick:
These are from a 3-11 alarm at 101 E Erie St Jan 5 1985. It was all the concrete forms of a high-rise under construction. Eng 22 caught fire after using the deck gun. Nice shot of 14 and in the overall shot the now extinct engine 20.

CFD firefighters attend to a fire on Engine 22. Steve Redick photo

Fire in a high-rise under construction in Chicago, January of 1985. Steve Redick photo

Steve Redick photo

CFD firefighters attend to a fire on Engine 22. Steve Redick photo

Featured in the image from the 3-11 Alarm fire during January of 1985, is Engine 20’s American LaFrance Century Series engine. The company has been disbanded. Steve Redick photo

Chicago Engine 14 using their American LaFrance Century Series engine. Steve Redick photo