This #10 envelope bore the image of GBW #314 on the front, and a stylized route map on the back with an emphasis on the railroad's car ferry connections at Kewaunee.

A couple of interesting points:

• The envelope was addressed to "B.C.E. RR" -  the British Columbia Electric Railway, now doing business as the the Southern Railway of British Columbia.
•  The envelope was postmarked January 18, 1971 and used the ubiquitous "White House & Flag" stamp of the era.
• This combination of loco and system map also appeared on matchbooks from the era.