techarchive

The top plane of the first "Automatic Totalisator," designed by George Julius (1913). It was a mechanical computer designed for calculating and displaying bets at horse races.

There are more really awesome pictures of it, at this link:
https://www.cs.auckland.ac.nz/historydisplays/SecondFloor/Totalisators/FirstJulius/FirstJuliusMain.php#tickets

Mathematics/Design linktr.ee/sinusoidalsnail
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absolutely amazing! I love these massively complex analog computing devices

It's me Rob! Most call me Emp.
Life long creative| On chain since 21'| life is for learning|
artist, musician, craftsmen|
https://linktr.ee/Empathetic_Alchemy

absolutely !  
mind boggling to think of and engineer and then to build it is monumental.
I'm not sure you could find craftsmen who could actually build it today.

Me toooooo. To me, this is more impressive than any digital computer could ever be. It's insane to imagine figuring out how to translate the physical movements into calculations.