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In page Two-up:
"As time passed, increasingly elaborate illegal "two-up schools" grew around Australia, to the consternation of authorities[citation needed] but with the backing of corrupt police. The legendary Thommo's Two-up School, which operated at various locations in Surry Hills, Sydney, from the early years of the 20th century until at least 1979, was one of Australia's first major illegal gambling operations.[1]
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