With Guy Fawkes Night approaching, big public fireworks displays are planned this weekend for most of the main centres, but back in post-war New Zealand, this sort of show was a real novelty. Recordings held in the sound archives of Nga Taonga Sound & Vision tell us about the "greatest pyrotechnic display in the Southern Hemisphere" which was held in Dunedin to mark the 1948 Otago Centennial.