Gostak's TARDIS

Gostak owned a TARDIS that was left in Mesopotamia on Earth, disguised as an obelisk. The Fifth Doctor secured one third of Botoya's chroni-core from the TARDIS, as well as a recording meant for him by his old tutor, before the ship's internal dimensions collapsed. Vislor Turlough remarked to the Doctor that the TARDIS was more impressive than his own. (AUDIO: The End of the Beginning)