Black Jack (stamp)
Black Jack or Blackjack was the 2-Cent denomination United States postage stamp issued from July 1, 1863 to 1870, is generally referred to as the "Black Jack" due to the large portraiture of the United States President, Andrew Jackson on its face printed in pitch black.
The stamp was issued to fulfill a need for a reduced rate, 2-Cent denomination for newspaper, magazine, and local deliveries; and was often used to "make up" higher rates, or split in half to make up lower ones (a 1-Cent stamp) due to shortages at the local post office.
During the Civil War, the "Black Jack" was supposed to have been favored by both North and South, but as soon as the South got news of the North making a stamp depicting one of their own heroes, they printed a 2-Cent stamp depicting the same portrait of Jackson on their own 'Red Jack' postage stamp of their own in reaction.
After the War was over, poverty inspired people to wash off the cancellation from the stamps and attempt to use them again. The Government then decided to put an antitheft device onto the stamps known as a grill. This grill, which consisted of various rows of tiny indentations into the stamps, was supposed to make it impossible to wash off the cancellations without being detected; but thieves usually got around this by bisecting the stamp, and then reusing that portion that didn't have a cancellation on it.
See also 
- "2-cent Jackson issue of 1863". Smithsonian National Postal Museum. Retrieved 18 December 2010.
- Scott Publishing Company, 2005 Specialized Catalogue of United States Stamps and Covers (2004)
- Lester G. Brookman, The 19th Century Postage Stamps of the United States (1947, vol. I) [exhaustive information about "grills"]
- John Kerr Tiffany, History of the Postage Stamps of the United States of America (1887)
- John Nicholas Luff, The Postage Stamps of the United States (1902)