Casino history lives in the objects people handled: marked cards, roulette...

https://brookssinsightfulinsights.raidersfanteamshop.com/do-all-playing-cards-follow-one-universal-pattern

Casino history lives in the objects people handled: marked cards, roulette wheels made for single-zero or double-zero play, and slot reels. An 1895 San Francisco workshop offers a glimpse of how gambling changed in paper and metal.