Self-operating typewriter

Typewriters are mechanical machines of Muggle origin. By pressing on one of the twenty-seven keys each representing a letter in the alphabet, the letter pressed will appear on a piece of paper placed inside the object.

History

 * Macusa used an assortment of these, but enchanted to work automatically, without the need to operate them, to print rat memos. These memos would be folded -magically- into rat origamis, travelling through pipes to arrive at the offices of those destined for the messages.
 * In 1926, Beryl worked in the Typing Pool, the office in which the Typewriters were located.

Behind the Scenes
It has been theorised by some fans that while the typewriters apparently work on their own accord, it could be the case that the typewriters in the Typing Pool in fact are linked to typewriters in various offices by means of the Protean Charm and the typing pool functioning as a sort of internal Macusa post office from where employees remotely dispatch messages to one another.

Appearances

 * Fantastic Beasts and Where to Find Them: The Art of The Film
 * Fantastic Beasts and Where to Find Them: The Art of The Film
 * Fantastic Beasts and Where to Find Them: The Art of The Film