yes, it was such a shock win that apparently they didn't have the Australian anthem, so they got some random drunk bloke with a trumpet to play and he played happy birthday. https://www.formula1.com/en/latest/features/2015/9/six-of-the-best---unusual-podium-ceremonies.html
I'm sure I recall some old F1 classic races on Sky F1 where in the early 80's they still had laurel wreaths from time to time. Is that around the right time?
I know this is probably wrong, but I seem to remember them at the European Grand Prix in '93.... I don't think that's right though.