This from Larry Shapiro:

Following up on the post from Mike Summa showing a later version the Markahm FD Dodge/Seagrave squad, here’s an early photo of it as Squad 55 in the original yellow.

vintage photo of Markham Fire Department (IL) Squad 55 in the original color built by Seagrave on a Dodge chassis

Markham FD Squad 55. Larry Shapiro photo