The Automaton; writing!

[Handley_Page]

As I recall it, The then US Secretary for War had a machine for signing his name on letters of condolence.
His machine was in a long line of them, starting with THIS one.

 

[sr71plt]

Thomas Jefferson used such a device to sign multiple copies of documents.

 

[Tio_Narratore]

Canadian author Margaret Atwood developed a remote book-autographing device...

http://www.wired.com/science/discoveries/news/2006/03/70345