Cards, roulette wheels, and slot reels hold casino history in their worn edges...

https://www.blaze-bookmarks.win/casino-history-lives-in-more-than-rulebooks-cards-roulette-wheels-and-slot

Cards, roulette wheels, and slot reels hold casino history in their worn edges and clever mechanisms. An 1895 slot made chance a public show, while single-zero and double-zero wheels set different odds