1937 dated First Day Issue Cover - Alaska - Americana - The Land of Yesterday, Today & Tomorrow

First Day of Issue featuring Alaska, The Land of Yesterday, Today & Tomorrow. The U.S. Postal Department issued four 3-cent stamps commemorating Insular Territories: Hawaii, Alaska, Puerto Rico and U.S. Virgin Islands over the three months of October to December 1937. The first was to honor the Territory of Hawaii acquired in 1898. It showed the statue of King Kamehameha I, unifier of the Hawaiian Islands, at the Iolani Palace in Honolulu. The second honored Alaska which was purchased in 1867. The stamp pictured snow-covered Mount McKinley with a farm and a village to symbolize modern development in the territory. Alaska and Hawaii territories were admitted as states in 1959. Read more at https://en.wikipedia.org/wiki/Territories_of_the_United_States_on_stamps