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Hall Safe Co. time lock, 1927. Demo of scissors bolt dogging system
Demo of interlock feature in the Hall Infallible Lockout Protection system
Consolidated single movement time lock mounted to a Hall's five tumbler combination lock, c. 1885
Hall Safe & Lock Co., Chronometric Attachment demonstration
Pillard time lock by the New Britian Lock Co., 1875, lock demo
Hall's Safe & Lock Co. Cincinnati, Ohio
Demo of Sargent & Greenleaf model 4A time lock on Hall Premier combination lock
Ohio Time Lock Co., demo of manual override
Consolidated Time Lock Co., Benjamin Flint model time lock
Mosler time lock with Seth Thomas movements supplied by Yale
Lillie Model 1, time lock. Emergency opening feature of lock.
Yale triple movement time lock in Mosler Cannonball Safe
