Bank of Canada values and prices of 1937 banknotes
The creation of a second series of bank notes, only two years after the first issue, was prompted by changes in Canadian government legislation requiring the Bank of Canada to produce bilingual bank notes. Another contributing factor was the death of King George V on 20 January 1936 and the subsequent abdication of Edward VIII.
The 1937 series of bank notes saw the portrait of King George VI replace those of other members of the royal family on all denominations except the $100 and $1,000 bank notes, which pictured former Canadian prime ministers. Other departures from the 1935 series included colour variations and the location of the portrait in the centre of the bank note bordered by English and French text.
Source : Bank of Canada