Whatever their origins, and no matter how long- or short-lived these new governments were destined to be, they all announced their arrival by issuing postage stamps. Enjoy this selection of stamps ...

The British Antarctic Territory and South Georgia and South Sandwich Islands marked the centenary of the end of World War I with new stamps ... represents the two postal administrations, after ...

With American entry into World War I in April 1917, the country's postal service underwent a number of changes. To accommodate the heavy costs of waging war, the price of a stamp for domestic mail was ...