This unaddressed Bernardo de Galvez First Day Cover with a Fleetwood Cachet was issued in the United States on July 23, 1980, in New Orleans, Louisiana. 

Bernardo de Gálvez was the governor of Spanish Louisiana during the American Revolution.   He organized military forces and led successful campaigns against the British along the Gulf Coast, aiding the American colonists.

The First Day of Issue cancellation adds to the collectible value of this piece related to the American Revolution. This FDC is a sought-after item for stamp collectors interested in United States history and military themes.