Dark star alloy brooch

On Gallifrey, the Doctor gave the Master a brooch made out of dark star alloy. used the brooch to pierce a Dalek's casing, allowing the Daleks left on Skaro to rot and liquefy to pass through the armour and kill the creature within. (TV: The Witch's Familiar)
Category:The Master's possessions
Category:The Doctor's possessions
Category:Brooches
Category:Gifts given by the Doctor
Category:Missy