Day of the Daleks: Episode Two - S9-E2
Trivia: David Troughton, who plays King Peladon, is the son of the Second Doctor, Patrick Troughton. Both Troughtons had previously appeared together in the Season 6 (1969) story 'The War Games'; Patrick Troughton as the Doctor, and David Troughton in the minor part of a soldier called Private Moor. Additional trivia point: David Troughton shared a flat with future (Sixth) Doctor Colin Baker at the time of the making of 'The Curse of Peladon' (January 1972).
Answer: It was never destroyed on-screen; it was intact at the end of the TV movie, and destroyed by the start of the 2005 series. It was destroyed in the novel "The Ancestor Cell," but in a completely different manner to what happened in the series.
DaveJB