Cards, roulette wheels and slot reels carry casino history in their design and...
https://speedy-wiki.win/index.php/Roulette_Wheel_and_Ball:_Why_Movement_Is_Part_of_the_Design
Cards, roulette wheels and slot reels carry casino history in their design and mechanics. In San Francisco around 1895, a small workshop helped shape the slot machine. This article follows the objects to see how gambling became public entertainment.