In the 1968 story “The Mind Robber”, a malfunction sends the TARDIS into another dimension. The Second Doctor follows Jamie and Zoe out into a void, where everything including the TARDIS is white. The production team built a special, simplifi ed TARDIS prop for this story, which was only used in the first episode.

The model is 1:21 scale to match the Eaglemoss figurines and stands 12.9 cm tall.