Only 13 were ever built, none were believed to be extant till this Yale And Towne Sextuple or model EE Safe-Time-Lock was found! This is the only extant safe-time-lock with a redundancy of five clock movements!
This time-lock is based on Emory Stockwell’s patent with number 363’920, issued on May 31, 1887,
Posted on 19 Oct 2018, 09:13 - Category: Office, Banking
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