Chicago Time Lock Company
Model, Perfection Time Lock, c1890. E. Howard Co. movements. These were used in the secondary emergency doors that were installed in very large vaults in case the main door could not be opened. file 113
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Chicago Time Lock Company
Model, Perfection Time Lock, c1890. E. Howard Co. movements. These were used in the secondary emergency doors that were installed in very large vaults in case the main door could not be opened. file 113
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