So to remove the need for moving unprocessed milk from one container to another, and hence potential cross contamination or need for the GWR to install hygienic washing facilities, the decision was taken to transport the milk churns.
Despite the age of this model, it is still very acceptable, and generally accurate. If you want to add detail the door handles and grab rails can be replaced. Further details can be added to the ends, and gas lines to the roof. The underframe can also be improved. However, it is good as it comes.