An Australian national cricket team captained by Ian Craig toured New Zealand between February and April 1957. They played 12 matches, seven of which were first-class, including three matches against New Zealand, but these were not granted Test status. The Australians won one and drew two of the international matches, and won the other four first-class matches.
Team
It was a young team: Craig was 21; the oldest player, Harvey, was 28; and the youngest player, O'Neill, was 19.
References
Australian cricket team in New Zealand in 1956–57 Wikipedia(Text) CC BY-SA