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Yale Type E time lock, 1889, winding and setting
Yale Type D time lock, 1889, winding and setting
Yale Type B time lock, 1888, winding and setting
Yale Type C time lock, 1888, winding and setting
Yale Type G, 1889 demonstration
Examination of the Yale Types B, C, D and E time locks
Mosler time lock with Seth Thomas movements supplied by Yale
Yale Quad N time lock with Yale No. 1 automatic bolt motor, c.1890
Yale Type B through C time locks running, 1888-1890
Yale Type A prototype
TMI 2400 delayed timelock programming
James Sargent Rollerbolt Magnetic Combination Lock, Model 1 paired with Gem time lock
