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

https://www.historyfiles.co.uk/support/historyES431-Cards-Wheels-and-Reels.htm

Casino history lives in the objects people handled: playing cards, roulette wheels, and slot reels. An 1895 San Francisco machine offers a close look at the mechanics behind familiar games, including the difference between single zero and double zero.