We recently looked at devilish automata from the 15th century; here’s Gustave Vichy’s mildly terrifying mechanical harpist, which was built in Paris in 1880. Her golden harp is invisible to the living; you can only see it on your deathbed.
https://gizmodo.com/in-the-15th-century-satanic-automata-wigged-out-church-5795086
[Via House of Automata]