Sargent & Greenleaf, Rochester, New York - 4 movements

       A

       B

       C

A. Model O. c. 1895-1900. Case and bolt #O-124, 'L' - sized, movements #8189, #2356, #8190, #8191. These four movement locks were fitted to the largest vaults. Due to their great expense, the Model O was rare even in its day. Less than 300 are thought to have been made and about 10 are known today. file 3

B. No. 6402. This may have been a prototype of this design. Custom mount for the snubber bar has been fitted to the case. No bolt is present indicating that was to be fitted to a door that had an automatic bolt release. Since only the largest vaults had four movement time locks, it's unlikely that an automatic bolt throwing system would have been practical in that size. The case itself is slightly smaller than the standard Model O design. Serial number on the case is 1. Much later Swiss movements. file 22

C. Model O. Same model case as in 'A' but of later manufacture (later called model #6403). Case and bolt #O-248, 'L' sized movements #15054, #10615, #12171, #13175. file 24