Interstate Motor Freight System
Grand Rapids, MI
MC-035628 DoT 75810
Facebook - Interstate Motor Freight System
lessthantruckloadhistory - History of Inter-State Motor Freight System- Part One
lessthantruckloadhistory - History of Inter-State Motor Freight System- Part OTwo
US Trademark
Route Map - 1972
Profiled in Mike Terebecki's The Vanishing Trucking Pioneers Book (click image to see Book index)
A Coloring Book of Fallen Flags
Acquisitions
Patches of it that are in my project - Facebook Trucking Industry Insignia Patches
"
Other known patches
If you want your own memoribilia:
Items available on eBay
Note that patches sold by "freedomfifty2k" and "bob82ndabn325inf"are likely promo/replica patches, not patches actually used by the company represented.