Donmetal vault doors

[Adrian Weber]

Hey Wylk thanks for this great information and for sharing that ad mate!
Is it in your collection?

I have information on armor being used by Bode Panzer and several drawings including a brochure but I can however not put it online here. Those doors are still in use in a lot a banks here in Germany and I can not risk putting such information online, sorry :(

[wylk]

It is confusing that Mosler described Donsteel/Donmetal as an alloy, when photos clearly show a sandwich construction. It may have been both. The steel layers may have been alloyed to improve torch resistance (by raising the melting point and/or improving thermal conductivity, for example) while the copper layer was an additional measure to improve resistance even further (plus it was a very visible feature to the customers and crooks alike).

Doug, could you post the patent numbers and scan the booklet?