Casino history lives in the objects people handled: marked cards, roulette...
https://www.bookmark-suggest.win/casino-history-lives-in-more-than-famous-names-cards-roulette-wheels-and-slot
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.