Photograph of a Commonwealth Railways poster advertising the <a href="https://en.wikipedia.org/wiki/Trans-Australian_Railway" class="extiw" title="w:Trans-Australian Railway">Trans-Australian Railway</a>. It was probably published between World War II and the <a href="https://en.wikipedia.org/wiki/Dieselisation" class="extiw" title="w:Dieselisation">introduction of diesel locomotives</a> of 1951. The orange map shows a route from <a href="https://en.wikipedia.org/wiki/Cairns" class="extiw" title="w:Cairns">Cairns</a> to <a href="https://en.wikipedia.org/wiki/Perth" class="extiw" title="w:Perth">Perth</a> but the Trans-Australian Railway covered only the Perth–Port Augusta segment.
Poster: former <a href="https://en.wikipedia.org/wiki/Commonwealth_Railways" class="extiw" title="w:Commonwealth Railways">Commonwealth Railways</a><br> Photograph: <a href="//commons.wikimedia.org/wiki/User:Reinhard_Dietrich" title="User:Reinhard Dietrich">Reinhard Dietrich</a>
CC BY 4.0
<a href="//commons.wikimedia.org/wiki/File:Poster_Trans-Australian.jpg" title="File:Poster Trans-Australian.jpg">Poster Trans-Australian.jpg</a>