I have managed to score a Bank of Canada Museum piece. I was fortunate to purchase this note through a private sale. According to the Charlton Standard Catalogue, this *AB 5164999 91 110 banknote is the first of the reported range and furthermore, only a total of 21 *AB banknotes have been reported before this one (ref. 2022 Catalogue). I have attached a picture of this banknote and it is graded as UNC-63. Please enjoy the picture.