There seemed to be an imbalance in traffic on 23 July 2014 with more diverted freights heading south than north. As a result, a couple of workings from Esbjerg to Fredericia were double headed. MZs 1456 and 1439 raced eastwards from Vejen with a train from Germany at lunchtime.
If you look closely you can see the slight difference in cab and body design between the two locos, representatives of the fourth and third batches respectively.