This centennial commemorative stamp honoured the transfer in 1851 of the administration of postal service from Great Britain to British North America. It emphasizes the development of communications by land a feature of Canadian history closely related to the development of postal service. The 4 cent stamp displays trains of the periods 1851 and 1951. The lower portion features a steam-engine train while the modern train in the upper half of this stamp is a composite picture of 2 Canadian trains. One is the 1st streamlined diesel electric locomotive manufactured in Canada at the Montreal Locomotive Works in April, 1950, for the Canadian National Railways. The other is a train in regular passenger service in 1951 on the Canadian Pacific Railway between Montreal and Vermont.
This image was engraved by Silas Robert Allen and designed by Herman Herbert Schwartz in 1951.