Vintage Padlock Keys Lot – Master Lock Co. Milwaukee, Master “V” Warded Key, and

Master Lock Co. (Milwaukee, USA) – Nickel-plated steel key stamped Master Lock Co. Milwaukee USA; fits early laminated Master padlocks such as Models 1, 3, or 5. GuardLock Brass Key – Solid brass, marked GUARDLOCK with code 9830 on reverse; used in mid-century Guard padlocks and cabinet locks.

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