This is a Festiniog Raiwlay 3 Ton Slate Waggon from the original batch of Brown Marshall bodies. It features dumb buffer and chain coupling. It is unbraked.
Use with axleboxes AB01 and Slater's FR Wheels.
(Axleboxes also available in 3D printed resin from my shop -
https://shop.coastlinemodels.co.uk)