Model - Type 1, c. 1895. As with many of their other locks this company took case design to a high level. Diebold used an acid-etching method instead of the conventional milling technique to make their intricate case designs, which otherwise would be cost prohibitive. These cases were also gold plated. (see other two movement and three movement Diebold cases). These were made to coordinate with the rest of the design theme that would be found on the inside vault door surfaces. Imagine how beautiful this must have looked, industrial form morphing into art! These early models had no internal bolt mechanism, but used a bottom release lever to trip an external bolt motor mechanism. This example equipped with signed E. Howard movements. In 1902, Diebold switched to identical looking, unsigned movements made by Seth Thomas. One thing that sets this example apart is the fact that there is no patent date engraved on the snubber front piece that reads "Pat. May 22, 1894". I know of no other early examples of Diebold's locks that have the pre 1900 gold engraved cases which does not have this. About 10 examples of the Diebold four movement locks are known Case #2511. 7"w x 4.25"h x 2"d. file 161
The first photo below shows a Diebold round door with a four movement Diebold time lock and using manually operated bolt actuation. This is a curious color combination since a brass colored Diebold lock would have been more in keeping with the design of the rest of the door. But this was obviously deliberate since the rest of the hardware is also silver colored. Next we have the reverse color combination with a gold colored time lock on a silver door background. The door is equipped with an automatic bolt opener. The time lock has later Diebold movements, c. 1950's mounted into a pre-1900's case.