Plate Numbered Block Of 4. Upto 10 items at no extra cost.Please check back soon as. I will be adding new items daily. The item "RW37 Federal Duck Stamp. Plate Numbered Block of 4. OG" is in sale since Sunday, February 19, 2012. This item is in the category "Stamps\United States\Back of Book\Duck Stamps". The seller is "rebenic25" and is located in Cape Coral, Florida. This item can be shipped worldwide.