The Clocksmith's TARDIS

This Type 70 TARDIS was used by the renegade Time Lord and artist, the Clocksmith who was also a member of the Doom Coalition. As part of the Doom Coalition plan, he travelled to the world of the Solvers with trinkets to amuse them so then he could disassemble their queen and enslave the Solvers to do his bidding.

The Eighth Doctor identified it as a Type 70 by the sound alone it created as it materialised whilst he was a prisoner of Thomas Cromwell in 1538. The Clocksmith learnt from a previous visit which took place a little further ahead the Doctor was killed trying to escape from Cromwell and came back through time to make sure it happened so the Doctor could not interfere. But he didn't know that Cromwell, after seeing the Doctor's TARDIS leave, made Brother Octavian falsify the records. Octavian, who was in fact the Eight, watched the Clocksmith arrive in that point of time and stowed away inside his TARDIS.

When the TARDIS materialised it assumed the shape of an Iron Maiden.(AUDIO: The Eighth Piece)

The Clocksmith used his TARDIS to pick up metal that had once come from Syra, the first world destroyed by the Sonomancer, and the first major casualty caused by the Doom Coalition. He fashioned the metal into the Doomsday Chronometer, but it was broken up by Resolva, who had returned to save her people from the Clocksmith, and he was forced to travel throughout Earth's history trying to find the pieces. His TARDIS assumed the shape of a wall.

The Doctor tracked the Clocksmith's TARDIS, noting how the Clocksmith had travelled in and around Earth's history.

When the Clocksmith was killed and the Doomsday Chronometer was assembled, the Doctor and River Song stole the TARDIS and used its fast return to return to the Tower of London. River was impressed by the newer TARDIS, though she wasn't familiar with the term 'Type 70' until the Doctor explained it was a later model of his own TARDIS. (AUDIO: The Doomsday Chronometer)

The Doctor had problems taking the TARDIS to the space/time co-ordinates to where the Doomsday Chronometer was indicating, and struggled to get the ship to travel on manual so he could control it. River made further notes about the TARDIS, comparing it to the Doctor's. The Doctor claimed that he could download the upgrades to his own TARDIS, but most of the Clocksmith's Type 70's appearance was cosmetic, and that his TARDIS was vintage. The Doctor deemed the TARDIS as "feisty," but he and River realised that space and time was collapsing, so they veered off and came across a ship trying to escape the catacylsm, there it disguised itself as a computer bank. There they met other members of the Doom Coalition and the Doctor used River's psychic wimple to disguise himself as the Clocksmith, who linked their TARDIS console to the Clocksmith's TARDIS, and took the ship to the Crucible of Souls.

After the newly regenerated Nine's attempt to use the Crucible to give himself immortality and exorcise his other selves was thwarted, he escaped using the Clocksmith's TARDIS.