Original Stamp Artwork from the Postmaster General’s Collection 10/04/17 – “Beautiful Blooms: Flowering Plants on Stamps,” opening Oct. 20 at the Smithsonian’s National Postal Museum, celebrates the variety of flowering plants commemorated on U.S. postage stamps during the past 50 years. The exhibition, on view through July 14, 2019, explores the symbiotic relationship between flowering […]