Hot Air Balloon design

(See all uses as list)

Switzerland 2/21/1979 70(c) issue=64th Esperanto Congress perf=11.5

Vietnam 3/7/1983 2d issue=200th Anniversary of Manned Flight dt=balloons (1983 Vietnam) perf=12.5x12.75

Grenada Grenadines 7/7/1989 $6 issue=Philexfrance '89 perf=13.75

Hungary 4/27/2007 Inland issue=Your Own School Graduation