Remember when slots meant feeding coins into a three-reel machine? Charles...

https://emilysgreatjournals.quantlynix.com/posts/what-is-the-oldest-idea-behind-coin-operated-entertainment

Remember when slots meant feeding coins into a three-reel machine? Charles Fey’s original Liberty Bell started it all, but Bally’s Money Honey changed the game with electromechanical features