World Stamp Catalogue/U

U

 * Uganda
 * Ukraine
 * Umm Al Qiwain
 * United Arab Emirates
 * United Kingdom, Great Britain
 * United Kingdom, Great Britain Offices Abroad
 * United Kingdom, Guernsey
 * United Kingdom, Isle of Man
 * United Kingdom, Jersey
 * United Kingdom, Lundy
 * United Nations
 * United States of America
 * Upper Senegal & Niger
 * Upper Silesia
 * Upper Volta
 * Upper Volta
 * Uruguay
 * US Post Abroad
 * USSR
 * Uzbekistan