“Mission to the Unknown”, Scene 7, Rocket Ship Exterior

On these albums

Doctor Who: The Daleks’ Master PlanTerry Nation & Dennis Spooner starring William Hartnell, Peter Purves & Adrienne Hill · 2001Soundtrack

Doctor Who: The Lost TV Episodes - Collection TwoVarious Artists · 2011

Source: MusicBrainz recording 7fe2cac0-2e90-46ac-8ca9-562739341a4d (CC0).