THIS INTERESTING VARIETY, A "WHITE BUTTERFLY", OCCURED ON SCOTT 1204 ISSUED ON JUNE 1, 1988. IT IS ON THE 37 CENT DUCK LANDING STAMP PART OF THE WILDLIFE CONSERVATION SET. IT FEATURES A BUTTERFLY LIKE MARK ABOVE ONE OF THE REEDS. 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 AD