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The 1940s represent a pivotal era in U.S. postal history, transitioning from the patriotic "Win the War" themes of the WWII years to a celebration of American culture. This decade is anchored by the iconic Famous Americans series, which honored 35 titans of industry, science, and the arts. Collectors prize this period for the introduction of the vibrant Overrun Nations flag stamps and various tributes to the post-war recovery. These commemoratives feature the classic, intricate engravings that defined the mid-century Bureau of Engraving and Printing style. Whether you are looking for the poignant FDR memorial issues or milestones of statehood, this decade offers a rich, historical snapshot of a nation in transformation.