Originally developed in the mid-19th century by English manufacturer , Darby handcuffs were the standard issue for police and prison guards before modern "swing-through" cuffs were invented. Unlike modern handcuffs, Darbys do not use a ratcheting mechanism. Instead, they feature:
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Due to their rigid nature and lack of modern quick-release features, Darby restraints require : Originally developed in the mid-19th century by English
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