A letter is a written message conveyed from one person to another through a medium. Something epistolary means that it is a form of letter writing. The term usually excludes written material intended to be read in its original form by large numbers of people, such as newspapers and placards, although even these may include material in the form of an "open letter". The typical form of a letter for many centuries, and the archetypal concept even today, is a sheet of paper that is sent to a correspondent through a postal system. A letter can be formal or informal, depending on its audience and purpose. Besides being a means of communication and a store of information, letter writing has played a role in the reproduction of writing as an art throughout history. Letters have been sent since antiquity and are mentioned in the Iliad. Historians Herodotus and Thucydides mention and use letters in their writings.
Philately is the study of postage stamps and postal history. It also refers to the collection and appreciation of stamps and other philatelic products. While closely associated with stamp collecting and the study of postage, it is possible to be a philatelist without owning any stamps. For instance, the stamps being studied may be very rare or reside only in museums.
A seal is a device for making an impression in wax, clay, paper, or some other medium, including an embossment on paper, and is also the impression thus made. The original purpose was to authenticate a document, or to prevent interference with a package or envelope by applying a seal which had to be broken to open the container.
An envelope is a common packaging item, usually made of thin, flat material. It is designed to contain a flat object, such as a letter or card.
Canada Post Corporation, trading as Canada Post, is a Crown corporation that functions as the primary postal operator in Canada.
Dead letter mail or undeliverable mail is mail that cannot be delivered to the addressee or returned to the sender. This is usually due to lack of compliance with postal regulations, an incomplete address and return address, or the inability to forward the mail when both correspondents move before the letter can be delivered. Largely based on the British model that emerged in the late eighteenth century, many countries developed similar systems for processing undeliverable mail.
The postage stamps and postal system of the Confederate States of America carried the mail of the Confederacy for a brief period in American history. Early in 1861 when South Carolina no longer considered itself part of the Union and demanded that the U.S. Army abandon Fort Sumter, plans for a Confederate postal system were already underway. Indeed, the Confederate Post Office was established on February 21, 1861; and it was not until April 12 that the American Civil War officially began, when the Confederate Army fired upon US soldiers who had refused to abandon the fort. However, the United States Post Office Department continued to handle the mail of the seceded states as usual during the first weeks of the war. It was not until June 1 that the Confederate Post Office took over collection and delivery, now faced with the task of providing postage stamps and mail services for its citizens.
Sealing wax is a wax material of a seal which, after melting, hardens quickly, forming a bond that is difficult to break without noticeable tampering. Wax is used to verify that something such as a document is unopened, to verify the sender's identity, for example with a signet ring, and as decoration. Sealing wax can also be used to take impressions of other seals. Wax was used to seal letters close and later, from about the 16th century, envelopes. Long before sealing wax was employed, the Romans used bitumen for this purpose.
The seal of the president of the United States is used to mark correspondence from the president of the United States to the U.S. Congress, and is also used as a symbol of the presidency itself. The central design, based on the Great Seal of the United States, is the official coat of arms of the U.S. presidency and also appears on the presidential flag.
A wedding invitation is a letter asking the recipient to attend a wedding. It is typically written in the formal, third-person language and mailed five to eight weeks before the wedding date.
Tamper-evident describes a device or process that makes unauthorized access to the protected object easily detected. Seals, markings, or other techniques may be tamper indicating.
In radiography, X-ray microtomography uses X-rays to create cross-sections of a physical object that can be used to recreate a virtual model without destroying the original object. It is similar to tomography and X-ray computed tomography. The prefix micro- is used to indicate that the pixel sizes of the cross-sections are in the micrometre range. These pixel sizes have also resulted in creation of its synonyms high-resolution X-ray tomography, micro-computed tomography, and similar terms. Sometimes the terms high-resolution computed tomography (HRCT) and micro-CT are differentiated, but in other cases the term high-resolution micro-CT is used. Virtually all tomography today is computed tomography.
Rashad Hasan Haughton is an American writer, film director and screenwriter. Haughton is the older brother of American singer and actress Aaliyah and nephew of Blackground Records founder Barry Hankerson.
In philatelic terminology a letter sheet, often written lettersheet, is a sheet of paper that can be folded, usually sealed, and mailed without the use of an envelope, or it can also be a similar item of postal stationery issued by a postal authority. Letter sheets derive from the form in which written correspondence was made up before the mid-19th century—letters were written on one or more sheets of paper that were folded and sealed in such a way that the address could be written on the outside.
Official mail is mail sent from, or by, an authorized department of government, governmental agency or international organization and normally has some indication that it is official; a certifying cachet, return address or other means of identity, indicating its user. In some countries, postage stamps have been issued specifically for official mail.
The seal of the vice president of the United States is used to mark correspondence from the U.S. vice president to other members of government, and is also used as a symbol of the vice presidency. The central design, directly based on the seal of the president of the United States, is the official coat of arms of the U.S. vice presidency and also appears on the vice presidential flag.
The Fletcher Collection is Hugh Greenwell Fletcher's lifetime philatelic collection of British postage stamps and British stamps used abroad including overprints and non-stamp items such as postal stationery. On his death in 1968, the collection was bequeathed to the Bruce Castle Museum in Tottenham, once the home of Sir Rowland Hill. The collection was donated to the British Library in 1989.
The St. Louis Bears are a set of Provisional stamps issued by the St. Louis Post office in 1845-46 to facilitate prepayment of postal fees at a time when the United States Post Office had not yet issued postage stamps for national use. St. Louis, whose postmaster, John M. Wimer, instigated the production, was one of eleven cities to produce such stamps. Bears were offered in three denominations: 5¢, 10¢ and 20¢; the earliest known postmark date on a stamp of the issue is November 13, 1845.
The Alexandria "Blue Boy" is a very rare stamp. It takes its name from the feature that makes it unique: its color. One of the few surviving stamps from a rare issue—the Postmaster's Provisionals produced in Alexandria, D.C., beginning in 1846, only seven of which are known—the Blue Boy is the sole example printed on blue paper. Postally used, the Blue Boy remains affixed to its original envelope, which last sold in 2019 and still holds the record for the highest priced cover of United States philately.
Giovanni Carlo Scaramelli (1550-1608) was a Venetian diplomat based in London at the end of the reign of Elizabeth I and the beginning of the reign of James VI and I.
