THIS ERROR STAMP ON SCOTT 851 WAS ISSUED MARCH 6, 1980 AND OCCURED ON THE 35 CENT PARLIAMENT BUILDINGS STAMP OF THE ACADEMY OF ARTS ISSUE. THERE IS A LINE ON THE TOP PART OF THE N IN CANADA. THE STAMP IS USED AND IS IN NICE CONDITION. FOR OTHER ITEMS OF PHILATELIC INTEREST ESPECIALLY ERROR STAMPS, ANTIQUES AND VINTAGE COLLECTABLES PLEASE VISIT MY OTHER ADS.