The Souvenir Card NOPEX 1972 Bureau Of Engraving & Printing Louisiana Purchase Theme is a collectible item from the United States, specifically issued in 1972 by the Bureau of Engraving and Printing. The card features a theme related to the Louisiana Purchase, making it a unique and interesting addition to any stamp collection. This ungraded and uncertified card offers a piece of history and cultural significance from the United States, perfect for collectors interested in unique and specific topics.