A conversion kit for the London Road Models (formerly D&S) Diagram 61A 6 wheeled LYR 20 T Brake Van kit. As produced, the original D&S kit makes the relatively late-built vans and the Brassmasters kit converts this to a diagram 43 version built in 1900, of which 83 were produced.  These had different internal veranda bulkheads and doors, roof end supports, brake rigging and lower step-boards and the Brassmasters kit either provides these alternatives and shows how the D&S version has to be modified.