There has to be plenty of small town fire departments who still have an AD firetruck for nostalgic purposes that still have legible script on the valve covers. I thought I found one in Wachapreague, VA, but to no avail. It is a GMC. It is a sight to behold nonetheless.
The search continues...

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission