Quik or Nesquik

HI Everbody! I'm searching for any Quik ads (print or TV) prior to the 1980s. The brand is obviously called Nesquik now, but this name change only ocurred within the last decade or so, and the brand celebrates it's 50 year anniversary this year!

Any idea where I could search for ads (preferably Australian)?

Thanks ppl!
Corinne