I have had the opportunity to get my hands on what is considered the first true Flip Clock. Made sometime around 1904-1906, the Plato Clock was considered a novelty. Later clocks called Cyclometers (the big wheeled clocks like the "Speed Read" came about, followed by the split flap digital clock we now all call flip clocks.
My Review
UPDATE (2019): I've completed a fairly comprehensive article about The Plato Clocks
My Review
UPDATE (2019): I've completed a fairly comprehensive article about The Plato Clocks
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