From 1964 to 1966, the post office issued a set of thirteen commemorative stamps leading up to Canada's celebration of its centenary as a nation in 1967. With the exception of the Unity stamp which was the first in the set, the stamps featured the floral emblems and coats of arms of the 10 provinces, two territories, and the Dominion.
A souvenir card with all the stamps in the series affixed to the card was printed to celebrate the Centennial:
Reverse:
The souvenir card was enclosed in a colourful envelope:
Souvenir Card mailed from Kitchener to Wolfsburg, Germany, May 26, 1967
"Expo 67" commemorative stamps paying the 15 cent air mail letter rate to Europe
Issue Dates
1) May 14, 1964 : Maple Leaf Unity
2) June 30, 1964: Ontario and Quebec
3) February 3, 1965 : New Brunswick and Nova Scotia
4) April 28, 1965 : Manitoba and British Columbia
5) July 21, 1965 : Prince Edward Island
6) January 19, 1966 : Alberta and Saskatchewan
7) February 23, 1966 : Newfoundland
8) March 23, 1966 : Yukon and Northwest Territories
9) June 30, 1966 : Dominion of Canada