3XY Top 40 Survey – June 22, 1973

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wikipedia:

3XY (1935-1991) was Melbourne's dominant music radio station during the 1970s and early 1980s with a Top 40 music radio format, but its fortunes declined in the late 1980s with the advent of FM radio in Australia.

Dr. Keats @ flickr:

From 1971 to 1988, these little buggers were a staple in the life of Melbourne teens...
Put out by legendary Melbourne radio station 3XY, the face side featured a popular artist, the reverse side featured a list of the week's most popular singles and albums. They were free in every suburban record barn; most of us would grab a handful each time we went in....

Source: slime.oofytv.set