If anyone from DTG can answer. Just curious if the serial number on the CSX hopper have any significance or was it a random number?
I can’t help with your question but I know the wagons on Tees Valley Line are in the correct number sequence, so I’d guess they correspond with real world numbers. I’m not sure if there are duplicates but looking at the other stock on any route I’m yet to come across two items with the same number. interestingly the coaches on Diesel legends, are as far as I have seen, all the same!