This US FDC First Day of Issue Cover commemorates the XI International Botanical Congress held in 1969, featuring beautifully colored flora stamps. The vintage cover is cancelled with a First Day of Issue postmark and is in ungraded condition. It is a perfect addition to any ephemera collection and a great way to celebrate the natural beauty of the United States. This multi-color cover was made in the United States and is a must-have for stamp collectors, especially those interested in botanical themes. Although it is used and uncertified, it still retains its charm and historical significance. Add this unique piece of history to your collection today!