Casino history is easier to touch than you might think. Cards carry the marks...

https://delta-wiki.win/index.php/How_Did_Playing_Cards_Handle_Wear_and_Repeated_Shuffling_Historically%3F

Casino history is easier to touch than you might think. Cards carry the marks of changing games, roulette wheels reveal different rules through single-zero and double-zero layouts, and slot reels trace the rise of mechanical play