Reskin of George Bailes' GWR Siphon G van into BR blue by paulsw2. Original creation by George Bailes - my thanks to George for allowing me to redistribute and his license continues to apply.
'Siphon', the GWR telegraph code name for a vehicle designed to carry milk in churns. Milk trains normally travelled at night, at express speeds, on the long haul from the West Country to London and other cities. Many of these vans were converted for parcels use by BR in the 1950s and beyond.