This from Eric Haak:
I took in this fire about 1330 hrs Saturday afternoon in Chicago’s 23rd Battalion. Fire was on the second floor of a vacant 25×40 2-flat in the 7200 block of South Constance. Companies working were Engine 126 & Truck 49, Engine 72 & Tower Ladder 34, with Truck 16 and Battalion 17 being RIT. It was hard to get any quality rig shots at this one due to the narrow streets and heavy tree cover. The fire was knocked fairly quick but companies had quite a bit of overhaul on this one and were on scene for a little over an hour. Engine 126 was using old Engine 56 as a spare rig.