Regarding the discussion on the legal tender status of 1867-1967 $1 banknotes, I was a 9 year old kid at the time and I was collecting coins and paper banknotes already by this time and the Bank of Canada want to have a "keepsake" for the public in 1967. At the time, RCMP agreed to permit the Bank of Canada to produce this run of 1867-1967 Serial Number banknotes without the traditional serial number as the production was limited to 12,000,000 banknotes. You need to consider that in 1967, there were over 1 billion $1 banknotes in circulation and to counterfeit a $1 banknote was not of interest to organized crime as the returns were very low when compared to higher denominations such as $20 banknote.
The $20 banknote was the most counterfeited banknote at the time as $20 banknotes were gaining popularity for spending purposes due to inflation and cost of living as well as the limited use of credit cards.
I can remember the Bank of Toronto-Dominion in Toronto in July 1967 dispensing the 1867-1967 banknotes by the bundles and nobody questioned its legal status. Even as a paperboy for the Toronto Star between 1969 and 1974, these banknotes were in circulation and I cannot remember anyone refusing to accept it including the stores and banks. At lot of people thought that these banknotes were cool which was a new word in 1967 courtesy of the Hippies.
My thoughts, Whitenite