It looks like it was a N.E. Toad E Van that was regularly used on the Wenford Branch not an LMS one as I first thought. But in saying that I could justify a 20T LMS van, a SR 25 ton van and the Standard BR van. Interestingly there is a case to justify a Queen Mary van in the early 1960s. One would be added to the goods train if there was a paying passenger. The train would then have two brake vans. That I have to model so it can be included as an option.