Faris23 wroteHello I was reading a very interesting artical about the relocation of the De Beers diamond headquarters in London. and In a couple of photos they show one of the vault doors I found to be way more impressive than my Kaso Centennial that I own.😃: Does anyone know who made these vaults and maybe have any literature on the history. I was able to crop just the vault door.
The door you picture looks like it could be a John Tann 10″ ATD quality (anti-thermic). There were also vaults on the upper levels by Chatwood as described below.

The levels of security in this building and the extension across Charterhouse Street were quite outstanding. There were very heavy manned gates on the extension for the admission of armoured trucks and the building itself linked by a covered bridge to the first floor level to the main offices across the street.
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