
thumb|U.S. Treasury Department check-signing machine, operated by J. L. Summers in 1918 An automatic pen, or autopen (informally known as a signing machine), is a mechanical device used for the replicated signing of a human signature.
thumb|U.S. Treasury Department check-signing machine, operated by J. L. Summers in 1918 An automatic pen, or autopen (informally known as a signing machine), is a mechanical device used for the replicated signing of a human signature.
Prominent individuals may be asked to provide their signatures many times a day, such as celebrities receiving requests for autographs, or politicians signing documents and correspondence in their official capacities. Consequently, many public figures employ autopens to allow their signature to be printed on demand and without their direct involvement.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).