This from Mike Summa:

Hello,
I found this photo on a web-site and I wanted to share it.  It’s not mine, but I thought that people would enjoy it.  This is a 1942 Packard/Henney Ambulance of the Blue Island Fire Department.  Enjoy!
–Mike S.
1942 Packard/Henney Ambulance of the Blue Island Fire Department

1942 Packard/Henney Ambulance of the Blue Island Fire Department. photographer and source unknown