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

https://astro-wiki.win/index.php/Why_Visibility_Matters_in_Casino_Equipment_Design

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.