Key of Rassilon

The Key of Rassilon
Type:	Key
Place of origin:	Gallifrey
Made by:	Rassilon
First appearance:	The Ultimate Foe
Appearances:	DW: The Ultimate Foe, VG: Destiny of the Doctors

The Key of Rassilon was a Time Lord artefact which permitted entrance to the Matrix. (DW: The Ultimate Foe)

The First Doctor once had a similar key to the Matrix. (VG: Destiny of the Doctors)