Casino history lives in more than rulebooks. Cards, roulette wheels, and slot...

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

Casino history lives in more than rulebooks. Cards, roulette wheels, and slot reels show how play changed, from San Francisco's 1895 machines to the familiar contrast between single-zero and double-zero wheels. The objects tell the story.