This US FDC First Day of Issue Cover commemorates the XI International Botanical Congress held in 1969 and features a beautiful multi-color flower design. The cover has been previously used and is considered a vintage item, making it a unique addition to any stamp or ephemera collection. The cancellation type is First Day of Issue, and the cover is ungraded and uncertified. The cover was produced in the United States and is a perfect representation of American stamp history. This item is a must-have for any stamp collector or enthusiast interested in botanical designs and vintage ephemera. Add this piece to your collection today and enjoy its beauty and historical significance.