I've mentioned this before, but the British Museum prints catalog invented alt text. "Copy after a Hogarth's design for a frontispiece to a pamphlet against the Hutchinsonians; a witch sitting on top of a crescent moon, pissing a cascade onto the rocks far below, on which lies a bound copy of 'Hutchin', and drowning a group of rats, some of which are gnawing at a bound copy of 'Newton' and a telescope." https://collections.library.yale.edu/catalog/16194197