<p>November 1971.  I'm guessing Roger Puta was on a mixed train in Western Canada.
</p>
Howard Pincus just told me this is a Hiram L. Piper's standard CNR marker.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/129679309@N05">Marty Bernard</a> from U.S.A.
Taken in November 1971
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/129679309@N05/34941536796/">Classic and Pretty Much Timeless</a>