1997 Delaware Migratory Waterfowl Stamp

Got this 1997 Delaware Migratory Waterfowl Stamp. It's the $6 version featuring some ducks in flight, looks like it's from the 1997-1998 season since it says void after June 30, 1998. It's still attached to the original margin with the serial number 1411 on it. Pretty cool little piece of Delaware history if you're into stamp collecting or waterfowl stuff. Condition looks good, no visible creases or anything.