A Movie Star Built This 🚘

Florence Lawrence, often called the first movie star, designed an "auto signaling arm" around 1914 to show which way her car was turning, plus a pop-up STOP sign for braking. She never patented either one and never made money from them. Sources: Smithsonian Magazine; Hagley Museum. #techhistory #inventors #carhistory #silentfilm #turnsignal

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