When during printing process the plates had too much ink or the ink was too wet for the one application , most noticeable on Sir Wilfrid Laurier. You can see the words Bank of Canada and the coat of arms were also affected. Also note the reddish line drawn through the bill.
This is a cancellation mark used to mark sheets to be rejected. The item "RARE CANCELLATION $5 Bank of Canada note.
CHUNC" is in sale since Sunday, April 21, 2019. This item is in the category "Coins & Paper Money\Paper Money\ World\North & Central America\Canada\Bank of Canada". The seller is "banknote555" and is located in Mississauga, ON. This item can be shipped to Canada, United States.