The product is a US Federal Duck Stamps Collection Scott # RW16 used and RW17 Mint H OG. These stamps have a denomination of 2.00 and were issued in the United States in the years 1950-1951. The stamps feature a duck theme and are from the Back of Book series. They are ungraded, uncertified, and have a pen cancel cancellation type, making them ideal for collectors interested in United States duck stamps with a specific cancellation and quality.