BANK OF CANADA 1991 $20 BONIN THIESSEN NOTE PREFIX EVB9057135 NO BPN CH-UNC  . CATALOGUE NUMBER BC-58b-ii   . PLEASE NOTE, I COMBINE S/H FOR ALL COINS AND PAPER MONEY AT THE FLAT RATE OF $2.99 IN CANADA AND $3.99 FOR USA AND $5.99 FOR INTERNATIONAL, THANKYOU