the evolution of casino slots etrstech
The Evolution of Casino Slots etrstech: Phase One—Mechanical Origins Late 1800s: Charles Fey’s Liberty Bell slot (1895) is all mechanical: gears, springs, and a lever. Paylines are literal, with physical stops determining outcomes. Early 20th century: Similar models appear with new symbols—fruits, bells, and lucky sevens. Mechanical constraints mean limited jackpots and few payline possibilities. […]


