So what are we seeing here? Definitely not a standard 10-cwt trailer. Could it be a civilian one?
"Royal Dutch Princess Irene Brigade Belgium.
Transport column of the Princess Irene Brigade in a Belgian village 25 miles from the Dutch border. Date: 1944-09-15"
Source: Dutch National Archives -
http://hdl.handle.net/10648/af21ae8c...8-003048976d84