Digitised and animated versions of some of optical device collector Richard ‘Dick’ Balzer’s many phenakistoscopes – illustrated disks that used persistence of vision to create (often morbid) animated loops when viewed through a slit in a mirrored enclosure.
Many more here.
Previously: Protogifs
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1) These are amazing. 2) I can’t believe anyone would be cruel enough to name their child Dick Balzer.