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On the Construction of Locks and Keys by John Chubb

Locksmithing, Blacksmithing, Metalcraft, Locks, Keys, Construction, Chubb, metalwork, security, antique, collectors, tools, education
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22 CONSTRUCTION OP LOCKS AND KEYS. Fig. 8. CHUBB'S FIRE-PROOF IRON SAFE. Another plan was to have a dry well beneath the floor of the basement, into which the safe was lowered every night, the greatest care being taken to guard against damp. No one lock should be depended on, but security should be obtained by having three, or four locks of different combinations. . It must also be borne in mind, that fire-proof safes and chests were required to preserve books, documents, and money, as much from fire as from thieves. Many safes which were sold as fire-resisting, were made of the thinnest plate iron, so that they would

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