Читать книгу The Development of Rates of Postage: An Historical and Analytical Study - A. D. Smith - Страница 9

Note.—In 1915 a war-tax of ½-d. was imposed on all letters and postcards. On the assumption that the numbers posted would not be appreciably diminished, the increase of revenue was estimated at $6,000,000 a year, and this estimate has been realized.