I have recently received two stamps related to Florida (in the USA), but issued by the Spanish postal service (Correos).
This was issued on 19 September, 2015. It commemorates the 450th anniversary of the founding of St. Augustine, the first successful settlement in La Florida and the most significant city in the region for nearly three centuries. It is the oldest continuously-inhabited, European-established settlement in the continental USA.
On the stamp you can see an engraving of the founder, the Spanish admiral and Florida's first governor, Pedro Menéndez de Avilés, along with a photography of the monument erected in his honour in the American city. I wonder why they have represented him twice.
Some months ago, on 3 January, 2014 they issued an stamp dedicated to the 5th Centenary of Juan Ponce de León's arrival at the Florida coast. The stamp does not show any map of the land, but a navigation chart.
By the way, I have received this self-adhesive stamp twice, with and without the frame:.