<p>"RS" must mean Road Switcher because it has road trucks.
</p>
<b>A Roger Puta Photograph''''</b><i></i>
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/129679309@N05">Marty Bernard</a> from U.S.A.
Taken on 6 September 1965
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/129679309@N05/35633501332/">CN 1296, a GMD SW1200RS, with a French speaking section gang grading track at Pembroke, ONT. station on September 6, 1965</a>