Today's slide depicts CN 1786 in Halifax, Nova Scotia, and was shot by Walter M. Matuch on May 30, 1976. CN 1786 was an RSC-14 built by the Montreal Locomotive Works. I believe it was the last RSC-14 on CN's roster, retired in May 1996.
Notice the little red step stool on the ground near the cab. I wonder what it was there for?