POStähistuseid

POStähistuseid refers to postal markings or stamps that are applied to mail for various administrative and functional purposes. These markings are not postage stamps themselves, but rather auxiliary stamps used by postal services. They can indicate dates of posting, cancellation of postage stamps, or specific routing and handling instructions.

Common types of POStähistuseid include postmarks, which show the date and location where a piece of mail was processed. These are often applied over postage stamps to indicate that they have been used. Other markings might signify that a letter is registered, requires special delivery, or has been inspected by customs. Some markings are used internally by postal workers to track mail through different sorting facilities.

The design and application of POStähistuseid vary significantly between countries and over time. Collectors of stamps, known as philatelists, often find these auxiliary markings of interest as they provide additional historical and contextual information about a piece of mail. They can reveal details about postal operations, historical events, and even social trends. The study of these markings falls under the broader field of postal history.