I was going to reply to an older thread about the Melbourne Games, but saw that it was locked. In honor of the current Winter Olympics in China, I'd like to show this interesting letter from 66 years earlier.

The cancellation says it was posted in the "Main Stadium, Melbourne, Vic, Aust. XVI Olympiad. Nov 24, 1956"
I also find the "Voice of NZ DX-ers to be a nice touch."