This is the Hornby OO Scale S. Skinner 7 Plank Wagon [R60343]

Although the Southern Railway was predominantly a passenger-carrying network, a surprising amount of freight was moved by rail too, especially coal, as this was needed to heat the homes of the railway’s passengers. Stephen Skinner was a Kent-based coal merchant established in the late 1800s. 

This highly detailed OO gauge scale model is an excellent representation of their 7 plank wagon, and is perfect for your freight model railway.