Original 1970 6c "The Landing of the Pilgrams" 1420 350th Anniversary of The Landing of the Mayflower Colonial Cachet Combination First Day Cover with 6 Stamps. Small red stamped 'Y' reverse towards middle under flap. Canceled November 21, 1970 Plymouth, MA. Envelope measures approximately 3 5/8" x 6 1/2". Please see pictures. Will be packaged well to assure no damage.