THIS ERROR STAMP ON SCOTT 693 WAS ISSUED JUNE 1, 1976 AND OCCURED ON THE 8 CENT WING PARADE AND MEMORIAL ARCH STAMP FROM THE ROYAL MILITARY COLLEGE ISSUE. THERE IS AN UNIDENFIED FLYING OBJECT TO THE LEFT OF THE RIGHT TOWER. 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.