Four USPS First Day Cover informational pages. Includes two "Save Our Wildlife Habitats" covers with pictorial postmarks and artworks, one "International Year of Disabled Persons 1981" cover, and one honoring Edna St Vincent Millay, American poet. Each cover features an official First Day of Issue cancellation, period stamps, engraved cachets, and descriptive history and context printed on the album page. Pages have pre-punched holes for binder storage.
Condition: all items appear clean with crisp text and images, slight handling marks may be present from storage. See photos for Measurements if taken.