Festive Christmas Seals are a Great Addition to Your Collection!Christmas Seals were issued by the American Red Cross (1907-1919), the National Tuberculosis Association (1920-1967), the National Tuberculosis and Respiratory Disease Association (1968-1972) and the American Lung Association (1973 and forward).  The Seals have been a way for charities to raise money, and patrons to add Christmas cheer to their letters and packages.