This looks like a plain ordinary cover. However, this cover is in fact fairly unique. If you inspect the postal marking, you can see that the postal code is
not in the hub. Instead, it is a RC number or a Canada Post Responsibility center.
Bob Thorne is an active writer and collector of machine cancellations. Andrew Cheung is a researcher, writer and collector of many different areas
of philately. If you find more of these covers, please contact the webmaster.
A great piece of postal history! Thanks Bob and Andrew!
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