Photo of the Adelaide Oval Switchback rollercoaster from 1889 taken by Ernest Gall.
<p>Ernest Gall<br></p>
(Life time: Unknown)
<p><b>Original publication</b>: Adelaide Views Collection<br></p>
<b>Immediate source</b>: <a rel="nofollow" class="external free" href="https://collections.slsa.sa.gov.au/resource/PRG+631/2/730">https://collections.slsa.sa.gov.au/resource/PRG+631/2/730</a>