1987 Delaware Migratory Waterfowl Stamp Ducks Unlimited 50 Years

Got this 1987 Delaware Migratory Waterfowl Stamp here. It's the Ducks Unlimited 50 Years anniversary edition featuring some redheads on the water. It says void after June 30, 1988 on the side. Pretty cool little piece of hunting history if you're into collecting stamps or duck hunting gear. It's in decent shape, just been sitting around.