In 1993, Australian National purchased five second-hand, broad gauge T class (G18B) locos from the Victorian state government operator (plus one extra for spares). After a short period running around in their former V/Line livery the class was gradually repainted in AN colours and reclassified 'CK' - widely reported as the initials of the AN manager that pulled off the deal.
On 2 September 1998, CK5/CK4/CK3 near journey's end as they negotiate the back blocks of Port Adelaide, South Australia, with the daily loaded limestone train from the Barossa Valley to the soda ash plant at Osborne.
Ownership transferred from AN to Australia Southern Railroad in November 1997; here the AN logos have been removed, but they are yet to receive their ASR ‘badges’. All three would eventually be transferred to Whyalla, South Australia, for narrow gauge (1067mm) duties on the iron ore ‘tramway’ there.
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