Hot Air Balloons on Stamps – USA
In 1983 USA issued four stamps on Hot Air Balloons. It was issued in a pane of 40x 20cents Stamps – Two Vertical and Two Horizontal Se-tenants. The Vertical stamps were on Thaddeus Lowe’s Civil War reconnaissance balloon “Intrepid” and the First helium filled balloon, “Explorer II”, which set an altitude record of 72,395 feet in 1935.
The horizontal stamps show colorful Balloons flown by Private Balloonists.