The train initially carried a fairly simple headboard carrying the wording "Hook of Holland" at the top of the smokebox, but this later evolved into a more elegant "The Hook Continental" which carried both the British and Dutch flags either side of the definite article. Electrical Inspections, page 7, by Basil Silcove". While automatic coupling is possible, this rarely happens and manual assistance is required during coupling. South African Transport Services, Before you can continue running, you have to clear the short circuit from the rails. The changeover occurred at the grade crossing at East Prairie, the former site of the Crawford-East Prairie station. In 7 mm scalescale working Norwegian couplings are now being manufactured by Zamzoodled  in the UK.
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It is a radial coupler with a coupler pocket which is open at the top of the coupling face. However, the locomotive that gave the class its nickname, 6 "Bongo", was not considered suitably named for "Hook Continental" duties according to one senior member of the management at Liverpool Street. South African Transport Services, Scientific American.