THE BR Diagram 1/260 11t Gunpowder van was the last build of an RCH design dating back to the 1930s. Of metal construction for both the body (wooden planking on the interior) and underframe, the design was adopted by the LNER, GWR, LMS and Royal Ordnance.
BR built its Gunpowder van from the early 1950s with changes over the original RCH design. As construction continued in small lots through the 1950s, small changes and upgrades were
