A Dolly
A converter dolly that is towed from a single hitch on the centerline of the towing unit.
Negotiated priveleges, between countries, that allows for foreign airlines to fly over, land in or out of another country. These freedoms were initially developed in 1944 and currently consist of nine (9).
Further information, including pictures, can be found at http://people.hofstra.edu/geotrans/eng/ch3en/conc3en/airfreedom.html
A combination vehicle consisting of a tractor and two or three semi-trailers, where each towed trailer is hitched to a fifth wheel on the frame of the preceding trailer.

Courtesy of Transport Canada
A contract for the carriage of goods.
A bill of lading has three purposes: