Did You Know on Instagram: "This lock was designed to defeat force, speed, and impatience, centuries before modern security existed 🔩⏳ Unlike modern locks that open with a single turn, traditional Chinese brass locks used multi-stage internal mechanisms that required a precise sequence of movements to unlock. The key was not a simple tooth pattern. It was a thin rod engineered to push, lift, rotate, and release internal pins and springs in a specific order, often across five separate steps. Eac

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