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[653] Prototype Dual Fork Bowley Padlock (Model 543)
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Pin tumbler lock & Disc detainer lock (How they work)
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[480] The Top Ten Nastiest Keyways (In My Collection)
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[631] Master Lock 875/975 Decoded WITHOUT ANY TOOLS !
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Why This Padlock Is Special!
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[275] Hugo "Cobra" 61P Padlock (6 Trap Pins!) Picked and Gutted
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