Charlton Brothers
Hagerstown, MD
MC-029647 DoT 60534
Ceased operations in 1994
Charlton Brothers Transportation
Profiled in Mike Terebecki's The Trucking Pioneers Book VII (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 trucking company 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.