Casino history is easy to picture in cards, but the objects tell a richer...

https://varimail.com/articles/why-reels-became-the-default-way-to-show-slot-outcomes/

Casino history is easy to picture in cards, but the objects tell a richer story. A roulette wheel’s single-zero or double-zero layout reflects different gambling traditions, while the familiar slot machine took shape in San Francisco in 1895