Thinking it might be an old unit fleet number from a previous owner / business....
Still very cool..


(2) 1954 3100's / foster parent - SOLD
1955.1 3100 Resto in progress
1971 GMC 2500 Custom / foster parent
1951 M37 Lawn ornament
1949 3800 Panel Resto in progress
1959 GMC 100 LB Fleetside