Genesis 6w - LMS Lined Crimson Lake/Royal Mail - Twin Pack GOur final offering for this run relates to the use of six wheeled vans as mail bag, parcel tender, and stowage vans in LMS Travelling Post Office trains of the 1930s. In much the same way that a steam locomotive employs a tender to carry coal and water, a mail and parcels train may require a tender to carry unsorted mail bags and parcels. These items were often picked up en route, particularly when TPO trains were marshalled at a central location from