Still recycling paper and I came across this. It is a 32-page booklet put out by the post office in 1956. It was known as Canada Post Office
(CPO) in those days before being changed to Canada Post
(CP). I have scanned both the front and back covers. This is a small information and rate booklet measuring 5 1/4 x 6 3/4 inches.
Still chances of finding more goodies while getting rid of paper etc.