Four individual USPS First Day Covers, each accompanied by illustrated informational cards from the Postal Commemorative Society, dated 1981. Subjects include 'Save Our Wildlife Habitats' (two covers, different wildlife series with artwork and stamps), 'International Year of Disabled Persons,' and two covers honoring Edna St. Vincent Millay, American poet, each with a commemorative stamp and first day of issue cancellation.
Collectively, these items offer thematic variety reflecting significant American cultural topics. Ideal for philatelists and thematic collectors. See photos for Measurements if taken.