BR 785130 'Vanfit' Covered Goods Van (body only)
From SVR Wiki
The grounded body of 'Vanfit' Covered Goods Van BRBritish Rail or British Railways B 785130 can be seen in the top right hand corner of this photo of the Diesel Depot yard at Kidderminster.
The SVRSevern Valley Railway also has a complete example of a Vanfit, GWR 65620.