Between 19th May and 2nd June the "Transpo '73" Exhibition was held at No. 6 Dock, Port of Manchester. The Railway Magazine (July 1973 edition) reports that "three-coach exhibition trains featuring respectively "Electrification" and the " Great British Investment" were present. The presumed formations of these are shown below, confirmation would be welcomed.
|March||M38744M, M38747M, M3849M, M38736M, M38746M, M38745M, M38741M||Trainex For Building|
|May||DB975073, DB975074, ZDW150353||Great British Investment||"Transpo '73", No. 6 Dock, Port of Manchester|
|May||DB975152, DB975153, DB975154 to be confirmed||Electrification||"Transpo '73", No. 6 Dock, Port of Manchester|