Australia in the 1950s

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Across
  1. 2. Prime minister for entire 50s decade. Robert _______
  2. 3. In 1957, Architect Jorn Utzon won the design competition for this historical landmark in Sydney (2 words)
  3. 7. Outdoor cinema that was a popular date venue in the 1950s (2 words)
  4. 8. Portable beer cooler, invented in Australia (1952)
Down
  1. 1. First airline to offer around the world passenger service (1958)
  2. 2. 1956 Summer Olympics host city
  3. 4. Combination of Rock’n’Roll & Country music
  4. 5. Automaker that dominated the Australian car market in the 1950s
  5. 6. Acronym for national science agency that invented permanent crease trousers (1957)