United States--History--World War, 1939-1945 3 World War, 1939-1945 2 Hitler, Adolf, -- 1889-1945 -- Assassination attempts 1 Katyn Massacre, Katyn', Russia, 1940 1 Scrapbooks--Great Britain--History--20th century--Pictorial works 1 Soldiers--Pennsylvania--Philadelphia--20th century 1 United States Government--House Committee on Un-American Activities 1 more ... United States Government--House Foreign Affairs Committee 1 United States--History--Cold War 1 United States--Relations--Soviet Union 1 World War, 1939-1945--Memorabilia 1 World War, 1939-1945--Operational rations (Military supplies)--United States 1 World War, 1939-1945--Participation, Civilian--United States--Poster--Specimens 1 less ...