This from Steve Redick:
4-22-78, a 2-11 at 46pl and Lasalle Ave. I processed these in my own darkroom, shot on TRI-X. I was riding on Engine 84 that day and we were due on the 2-11 … dropped a 3-inch line into the Snorkel if I remember right. Used a Canon Rangefinder camera
Additional images are at fire scenes.net