DE1 1980 Delaware Duck Stamp - MNH - Black Ducks Artist: Ned Mayne - First Duck Stamp issued in Delaware - Plate Block of 4. The item "DE1 1980 Delaware Duck Stamp MNH Black Ducks Plate Block" is in sale since Friday, January 25, 2019. This item is in the category "Stamps\United States\Back of Book\Duck Stamps". The seller is "rylandscott" and is located in Atlanta, Georgia. This item can be shipped to United States.