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Time Lock

Manufacturer - Sargent & Greenleaf
Dates of patent: 1875 -1877

Date of Manufacturing: Early 1900's Number of movements: 1. 72 hours.

This Timelock was used by Mosler on it's Corliss Safes. Each safe had 2 of the locks.

The use of a single clock was limiting and soon gave way to the introduction of 2,3 and 4 movements with increased time spans.