U.S. Federal Duck Stamp RW56 from 1989, featuring a Plate Block of 4 with the Lesser Scaup duck design. This stamp has a denomination of $12.50 and is Mint Never Hinged, meaning it is in pristine condition and has never been used. The stamp showcases a colorful design related to ducks and is of United States origin. It is a collectible item that is ungraded and uncertified, making it a sought-after piece for stamp enthusiasts and collectors.