A bit of scaperboard artwork here I suspect on the cover of the Winter 1950 - 1951 Condensed Time Tables issued by the Canadain Pacific Railway - as noted this was for use of passengers arriving by Atlantic Steamships. CP used to market themselves as spanning the globe via their Atlantic and Pacific steamship routes allied to their Trans-Canadian railway lines and perhaps there was a version fo this for arrival by Pacific Steamships.
The artwork is a little 'old fashioned' in some respects for 1950 but it is wonderfully detailed and eye-catching as the train steams across what appears to be a prairie landscape, even down to a couple of telegraph poles far right.