SAR Class 1E locomotives hauling a heavy coal train up a 1 in 65 gradient on the Natal Railway between Glencoe and Pietermaritzburg.
Unknown author<span style="display: none;">Unknown author</span>
<a rel="nofollow" class="external text" href="http://www.railwaywondersoftheworld.com/south-africa-electrification.html">Railway wonders of the world (Part 48, published 27. December 1935)</a>