Cary Safe Co. automatic time lock, c. 1893 @MarkFrankclocks
Cary Safe Co. automatic time lock, c. 1893  @MarkFrankclocks
Uploaded May 2026 | Updated September 2026, 2 weeks ago
This video shows how the S&G automatic time lock worked. Very few examples are known with this one being the only complete and functional example. There are four other examples, all of which are either incomplete or in one case, having the original S&G time lock module replaced with a later-made Mosler unit. A description and photos of this as well as the other known examples can be seen here: my-time-machines.net/cary_safe.htm
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Mark Frank |

Cary Safe Co. automatic time lock, c. 1893

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