Only parts 13 and 14 offered anything near this, with a colour plate and photogravure supplement (issue 13) or two colour plates (issue 14).
The colour cover was a noteworthy feature of this series. The first issue had a track side view of the LMS Pacific "Princess Royal". All the covers of Railway Wonders of the World are highly attractive and many of these designs were used as colour plates for the series.
In this instance, the cover illustration was subsequently used for a black and white art plate contained within issue 12 whilst another view of the same locomotive was later used
as the cover for issue 37. The use of colour covers continued with subsequent series issued by the Amalgamated Press.
The evolution and working of the Great Western Railway’s most powerful locomotive, "King George V". The article accompanies the folding colour-plate of a “King” class locomotive which appears at the front of this issue and which forms the frontispiece to the whole work. There is a photograph of the cab of a “King” in part 46.