Had a thought. Since reflective Scotchlite hadn't been invented yet (they used it in Scars of Dracula in '70), how would you achieve that effect in 1959? I just thought: Ah! Dracula's eyes! I'm going to assume the effects crew was much the same as with Dracula in '57-58. That disintegration climax has a little, nearly subliminal effect when ol' Drac has been reduced to a deflating, putrefying corpse: the light in the eyes goes out. Betcha-by-golly-yah they did the same trick in reverse, ran a wire through the prop poker to a concealed light within the "white-hot/red-hot" tip.