Mason and Dixon Lines Inc
Kingsport, TN
MC-059583 DoT 41208
Mason-Dixon was based in Kingsport, TN and was purchased by Central Transport of Sterling Heights, MI in 1984.
Youtube - Kingsport Historical Society : 092023 : Mason Dixon Trucking Line : Richard Venable
Route Map - 1961
Profiled in Mike Terebecki's The Vanishing Trucking Pioneers Book (click image to see Book index)
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.