United Nations 1951 Airmail - Plane, Gull, Swallows, and Emblem

• Issue Date : December 14, 1951
• Designed by :
• Engraved by :
• Printed by :
• Print Process :
• Perforations : 14

Plane and Gull 6¢	Plane and Gull 10¢
Swallows and UN Emblem 15¢	Swallows and UN Emblem 25¢

First Day Cover

Plane and Gull 6¢ FDC	Plane and Gull 10¢ FDC
Swallows and UN Emblem 15¢ FDC	Swallows and UN Emblem 25¢ FDC