asciilifeform: dunno, my tank's lever nut was a veritable antikythera, wholly solid ball of rust.

asciilifeform: oh and : bring a hacksaw, often ancient flush lever has the nut rusted solid, you will not be able to turn it out, gotta slice through the 'antikythera'

asciilifeform: aha, earliest known clockwork calc is 'antikythera mechanism'