Darling Freight Inc Grand Rapids, MI MC-046280 DoT 75813 Renamed Key Line Freight Co 1971
Route Map - Spring 1961 Profiled in Mike Terebecki's The Trucking Pioneers Book II (click image to see Book index)
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.
