This from Mike Summa for #TBT:
For TBT – This was the University Park Fire Dept.’s Engine 73, a 1980 Hendrickson/FMC 1500/500. This is a very old picture, the color does not show the yellow paint scheme very well. The engine is also lettered Park Forest South before the name change.Mike Summa

Mike Summa photo
From our files:

Larry Shapiro photo

Bill Schreiber photo

Karl Klotz photo

Bill Schreiber photo