The Master is restored by Numismaton fire. (TV: Planet of Fire) Numismaton gas was a gas found on the planet Sarn. When ignited it had restorative properties. It could heal wounds and other afflictions; it restored the Master to his proper size. (TV: Planet of Fire) Retrieved from "https://tardis.fandom.com/wiki/Numismaton_Gas?oldid=1547146" Categories: Gases Drugs and medicines + cat Cancel Save Community content is available under CC-BY-SA unless otherwise noted.