Mysterious coded cancellation in Canada

After two asiatic steps (1 and 2), a thirs letter sent by a friend whose job helps him to travel.



Full sheets of stamps of Canada has got informations about the stamp's conception (authors, printer). The cancellation is vague, less if the code on the right part of the first line means something.

Concerning the new coded cancellations of France, you can read a list compiled by Claude Jamet (pdf file).