A 2002 franking from Canada came to my mind thank to a message posted yesterday on the Raretés et curiosités philatéliques blog. Its author presents classical stamps and their sales, in a vision similar the one I read regularly in British Stamp Magazine.
The letter was sent by a Toronto lady to a couple living in Clermont-Ferrand, France.
The stamp in the middle was issued for the 150 years of the Canadian post and reproduced one of the three first stamps of the Province of Canada (now Ontario and Quebec). The beaver, the most little value, was designed by engineer Sandford Fleming.
Details non visible on the stamp scanned on Raretés et curiosités philatéliques are visible on this stamp on stamp, for example the sun.
Fleming's beaver was used again in 1859 on a 5 cent stamp after the dollar replaced the shilling and its pence.