This from Mike Summa:

Hello,
This is Blue Island Truck 2104.  It started as a 1951 ALF 85-foot Quint.  In 1980, this was sent to ALF again in University Park to have a new Century cab installed.  It was the first unit to have a white top, which is a Blue Island hallmark now.  This was in service until 1997, when a new E-One tower was purchased, a remarkable 46 years of continuous service and durability.  Enjoy!
–Mike Summa
Blue Island Fire Department 1951 American LaFrance fire truck

Mike Summa photo