This centennial commemorative issue of four postage stamps honoured the transfer in 1851 of the administration of postal service from Great Britain to British North America. The three low denominations emphasize the development of communications by land, water, and air, a feature of Canadian history closely related to the development of postal service. The fourth stamp in the series features the first postage stamp issued in 1851 by the Province of Canada. The first day of issue coincided with the stamp exhibition called CAPEX (Canadian Association for Philatelic Exhibitions). The Postmaster General, the Hon. G. Edouard Rinfret, K.C., M.P., was the Honorary President. The lower half of the 7-cent postage stamp displays an early stagecoach passing Jordan's York Hotel, King Street East, York (now Toronto, Ontario). In 1814, the Legislature met in this hotel after the destruction of the Government Buildings by invading United States forces in 1813. The upper half of the stamp design features a 1951-type Canadian-built North Star plane in the service of Trans-Canada Airlines.