knyazna.ua: USA 1934 National Parks 585
knyazna.ua: USA 1972 The 100th Anniversary of National Parks - Yellowstone National Park 1219
knyazna.ua: UN Geneva 2003 UNESCO World Heritage - United States of America 488
knyazna.ua: USA 1970 Wildlife Conservation 1169
knyazna.ua: USA 1984 The 25th Anniversary of Alaska Statehood 1816
knyazna.ua: USA 1934 National Parks 582
knyazna.ua: USA 1934 National Parks 582A
knyazna.ua: USA 1990 Grand Canyon 2246
knyazna.ua: USA 2000 Landscape 129 airmail
knyazna.ua: UN New York 1984 World Heritage - U.N. Educational, Scientific and Cultural Organization 444
knyazna.ua: Japan 2013 Overseas World Heritage 6342
knyazna.ua: USA 1947 Everglades National Park 761
knyazna.ua: UN Geneva 2003 UNESCO World Heritage - United States of America 487
knyazna.ua: San Marino 1976 The 200th Anniversary of the Independence of the United States of America 1126
knyazna.ua: USA 1954 -1973 Liberty issue 855
knyazna.ua: USA 1975 Flag 1350
knyazna.ua: USA 1926 Independence Sesquicentannial Exposition 503
knyazna.ua: Monaco 1976 The 200th Anniversary of the American Revolution 1231
knyazna.ua: USA 1961 Liberty Bell 58 airmail
knyazna.ua: USA 1964 John Muir 1028
knyazna.ua: USA 2006 Wonders of America - Land of Superlatives 4268
knyazna.ua: UN Geneva 2003 UNESCO World Heritage - United States of America 486