This might have been a combined Cobram / Albury service. The trains at Spencer Street were so much more appealing back then, even better a couple year prior to this when it was VR & V/Line Tangerine A, B, X class with occasional C upfront 😊
That's The Overland at 14:06, with a CLP class up front. CLPs only hauled it for a few years before NRs took over. The Ovie's already shrunk a lot but the 3 governments involved, hadn't finished with it yet. I mean, You can't just withdraw a comfortable overnight train in one nasty hit? That would cause a political backlash. & today? Adelaide has 100,000 more people & Melbourne 750,000 more at least ( feels like over 1 million more?). Yet many of them would never know that there was once a long, heavy & comfortable overnight train between the two capitals. & the government (s, sorry, Australias got 3 zillion governments) want it to stay that way. An American may be interested in the fact that The Overland was the only intestate train in Australia that had stable type doors in the vestibule. Meaning you could safely have the top 1/2 open, a hoot, at speed & in tunnels, a bit like riding a motorcycle, & if you were up front, close to the locos, you got the whole symphony, especially as the train toiled, slowly though the Adelaide Hills in notch 8 ( run & for the Mericans). The split door was on a lot of trains in America too.