Glass Plates- the origins

[safeman]

All this talk of glass plates prompts me to ask if I'm alone in the belief that the concept came originally from the Ministry of Works security team who were responsible for Crown Post Office premises, safes, and strongrooms.

In conjunction with the Stratford Safe Company in the late 1960's a safe with revolutionary lock and boltwork combined with a tempered glass plate connected to a pair of cross-locking re-lockers was designed and produced at Borehamwood and named the Stratford Treasury.

Attachment 20543 With subsequent company acquisitions this became the Ratner 8500 and Tann Fortress.

I would welcome any alternative thoughts on the original concept as my memory could be playing tricks again.