The Tri-ang Hornby Britannia Iron Duke Smokebox Door in Gloss Black is a vintage train part designed for Hornby collectors and enthusiasts. This analogue-controlled, plastic door is compatible with Hornby Britannia models in OO scale, featuring a black colour and British Railways Steam Era design. Made in the United Kingdom, this door is a unique and authentic addition to any model railway collection, adding to the overall vintage charm of the train.