right|thumb|U.S. 2¢ stamp of 1938 with New York precancel, Scott No. 806, PSS type 71 A precanceled stamp, or precancel for short, is a postage stamp that has been legitimately cancelled before being affixed to mail. A number of nations of the world use precancels, typically in the form of an overprint on definitive series stamps.
right|thumb|U.S. 2¢ stamp of 1938 with New York precancel, Scott No. 806, PSS type 71 A precanceled stamp, or precancel for short, is a postage stamp that has been legitimately cancelled before being affixed to mail. A number of nations of the world use precancels, typically in the form of an overprint on definitive series stamps.
==Use== Precanceled stamps are typically used by mass mailers, who can save the postal system time and effort by prearranging to use the precancels, and delivering the stamped mail ready for sorting. The postal administration will typically offer an incentive in the form of a reduced price for precanceled stamps in volume. Precancels cannot normally be purchased by the general public, although they are often seen in one's daily mail.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).