Stamps Year 1991

Anniversary
Jose Roberto Lara
Equus ferus caballus
Nelida Fernandez Besada
Cobitis taenia
Nelida Fernandez Besada
Aviation, Airship
Jose Roberto Lara
Airship
Nelida Fernandez Besada
GA-42
Nelida Fernandez Besada
Airship
Nelida Fernandez Besada
1388 - 100th birthday of Reinold von Thadden Trieglaff
joaquín iturrioz
1st ellipsoidal airship
Nelida Fernandez Besada
150th anniversary of the first steamboat trip to Czech Bohemia
Nelida Fernandez Besada