In which American city did Charles August Fey establish his reputation in the mechanics trade?

Answer

San Francisco

Charles August Fey, a German immigrant, cemented his mechanical expertise and built his reputation within the specialized trade of machinery repair and creation in San Francisco. His background in precision engineering provided him with the necessary skillset to tackle the intricate interlocking puzzles inherent in developing self-governing automated payout mechanisms for coin-operated devices. This geographical location served as the epicenter for his most inventive period, culminating in the creation of machines that would redefine mechanical gambling, most famously his work leading up to the Liberty Bell design.

In which American city did Charles August Fey establish his reputation in the mechanics trade?

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