Holland’s Rijksmuseum has in their collection this ” detector lock , ” created by a British locksmith named John Wilkes circa 1680. Made of nothing more complicated than brass and steel, it essentially has two-factor identification as you need to both possess the key and know how to operate the damn thing. And it’s got a clever little counter: Detector lock by John Wilkes from Victoria and Albert Museum on Vimeo.
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An Incredibly Clever Lock Design from 1680