A postage stamp is a small piece of paper issued by a post office, postal administration, or other authorized vendors to customers who pay postage. Then the stamp is affixed to the face or address-side of any item of mail—an envelope or other postal cover —which they wish to send. The item is then processed by the postal system, where a postmark or cancellation mark—in modern usage indicating date and point of origin of mailing—is applied to the stamp and its left and right sides to prevent its reuse. Next the item is delivered to its addressee.
Stamp collecting is the collecting of postage stamps and related objects. It is an area of philately, which is the study of stamps. It has been one of the world's most popular hobbies since the late nineteenth century with the rapid growth of the postal service, as a stream of new stamps was produced by countries that sought to advertise their distinctiveness through their stamps.
An overprint is an additional layer of text or graphics added to the face of a postage or revenue stamp, postal stationery, banknote or ticket after it has been printed. Post offices most often use overprints for internal administrative purposes such as accounting but they are also employed in public mail. Well-recognized varieties include commemorative overprints which are produced for their public appeal and command significant interest in the field of philately.
For postage stamps, separation is the means by which individual stamps are made easily detachable from each other.
The Inverted Jenny is a 24 cent United States postage stamp first issued on May 10, 1918, in which the image of the Curtiss JN-4 airplane in the center of the design is printed upside-down; it is one of the most famous errors in American philately. Only one pane of 100 of the invert stamps was ever found, making this error one of the most prized in philately.
This is a list of philatelic topics.
A postage stamp design error is a mistake made during the design phase of the postage stamp production process. Design errors most commonly occur as minor mistakes, such as a missing letter in the binomial name of an organism depicted on the stamp, but some have been major gaffes, such as a map appearing to lay claim to another country's territory, or the depiction of the wrong person on the stamp.
In philately, an invert error occurs when part of a stamp is printed upside-down. Inverts are perhaps the most spectacular of postage stamp errors, not only because of their striking visual appearance, but because some are quite rare, and highly valued by stamp collectors.
Postage stamps and postal history of the Canal Zone is a subject that covers the postal system, postage stamps used and mail sent to and from the Panama Canal Zone from 1904 up until October 1978, after the United States relinquished its authority of the Zone in compliance with the treaty it reached with Panama.
In general, philatelic fakes and forgeries are labels that look like postage stamps but have been produced to deceive or defraud. Learning to identify these can be a challenging branch of philately.
The Dag Hammarskjöld invert is a 4 cent value postage stamp error issued on 23 October 1962 by the United States Postal Service one year after the death of Dag Hammarskjöld, Secretary-General of the United Nations, in an airplane crash. The stamp, showing the yellow background inverted relative to the image and text, is also known as the Day's Folly after Postmaster General J. Edward Day who ordered the intentional reprinting of the yellow invert commenting, "The Post Office Department is not running a jackpot operation."
Admirals are a series of definitive stamps issued by three countries of the British Commonwealth that show King George V of Great Britain and the British Dominions. The stamps are referred to as the Admirals because King George is depicted in his Admiral of the Fleet uniform. The stamps were issued by Canada in 1911–1928, New Zealand in 1926, and Rhodesia in 1913–24.
Philatelic expertisation is the process whereby an authority is asked to give an opinion whether a philatelic item is genuine and whether it has been repaired or altered in any way.
The first revenue stamps in the United States were used briefly during colonial times, among the most notable usage involved the Stamp Act. Long after independence, the first revenue stamps printed by the United States government were issued in the midst of the American Civil War, prompted by the urgent need to raise revenue to pay for the great costs it incurred. After the war ended however, revenue stamps and the taxes they represented still continued. Revenue stamps served to pay tax duties on items that came under two main categories, Proprietary and Documentary. Proprietary stamps paid tax duties on goods like alcohol and tobacco, and were also used for various services, while Documentary stamps paid duties on legal documents, mortgage deeds, stocks and a fair number of other legal dealings. Proprietary and Documentary stamps often bore these respective designations, while in several of the issues they shared the same designs, sometimes with minor variations. Beginning in 1862 the first revenue stamps were issued, and would continue to be used for another hundred years and more. For the first twelve years George Washington was the only subject featured on U.S. revenue stamps, when in 1875 an allegorical figure of Liberty finally appeared. Revenue stamps were printed in many varieties and denominations and are widely sought after by collectors and historians. Revenue stamps were finally discontinued on December 31, 1967.
The Washington–Franklin Issues are a series of definitive U.S. Postage stamps depicting George Washington and Benjamin Franklin, issued by the U.S. Post Office between 1908 and 1922. The distinctive feature of this issue is that it employs only two engraved heads set in ovals—Washington and Franklin in full profile—and replicates one or another of these portraits on every stamp denomination in the series. This is a significant departure from previous definitive issues, which had featured pantheons of famous Americans, with each portrait-image confined to a single denomination. At the same time, this break with the recent past represented a return to origins. Washington and Franklin, after all, had appeared on the first two American stamps, issued in 1847, and during the next fifteen years, each of the eight stamp denominations available featured either Washington or Franklin.
The Regular Issues of 1922–1931 were a series of 27 U.S. postage stamps issued for general everyday use by the U.S. Post Office. Unlike the definitives previously in use, which presented only a Washington or Franklin image, each of these definitive stamps depicted a different president or other subject, with Washington and Franklin each confined to a single denomination. The series not only restored the historical tradition of honoring multiple presidents on U.S. Postage but extended it. Offering the customary presidential portraits of the martyred Lincoln and Garfield, the war hero Grant, and the founding fathers Washington and Jefferson, the series also memorialized some of the more recently deceased presidents, beginning with Hayes, McKinley, Cleveland and Roosevelt. Later, the deaths of Harding, Wilson and Taft all prompted additions to the presidential roster of Regular Issue stamps, and Benjamin Harrison's demise (1901) was belatedly deemed recent enough to be acknowledged as well, even though it had already been recognized in the Series of 1902. The Regular Issues also included other notable Americans, such as Martha Washington and Nathan Hale—and, moreover, was the first definitive series since 1869 to offer iconic American pictorial images: these included the Statue of Liberty, the Capitol Building and others. The first time (1869) that images other than portraits of statesmen had been featured on U.S. postage, the general public disapproved, complaining that the scenes were no substitute for images of presidents and Franklin. However, with the release of these 1922 regular issues, the various scenes—which included the Statue of Liberty, the Lincoln Memorial and even an engraving of an American Buffalo—prompted no objections. To be sure, this series presented pictorial images only on the higher-value stamps; the more commonly used denominations, of 12 cents and lower, still offered the traditional portraits.
The Halfpenny Yellow is the first postage stamp issued by the Crown Colony of Malta. Depicting Queen Victoria, it was only valid for local postage and it was originally issued on 1 December 1860. It was the only stamp issued by Malta for two and a half decades, and during this period various reprints were made with differences in colour shade, perforation and watermark. When control of Malta's postal service was transferred to the island's colonial government on 1 January 1885, the stamp was withdrawn and it was replaced by a set of definitive stamps.
The St Paul's Shipwreck 10/- black is a postage and revenue stamp issued by the Crown Colony of Malta on 6 March 1919, and it is generally considered to be the country's rarest and most expensive stamp. It is rare because a very limited quantity of 1530 stamps was printed and it was inadvertently issued prematurely by the Post Office.
The Melita issue is a series of dual-purpose postage and revenue stamps issued by the Crown Colony of Malta between 1922 and 1926, depicting the national personification Melita. They were commemorative stamps since they celebrated the islands' new status as a self-governing colony following a new constitution in 1921, but also a definitive issue intended for regular use over an extended period of time.
