No drawings survive for these late 1830s carriage trucks but they frequently appear in contemporary illustrations and there are written accounts describing them together with references in company minute books. This one conforms to the dimensions given by Wishaw of a Grand Junction Railway carriage truck c.1837.
‘The carriage trucks are each 13 feet 8 inches long, 7 feet 1-1/2 inches wide, and the sides 1-1/2 inches high; the weight being about 43 cwt., and the price £130.’