Now Adolf Hitler said they could still hope: "The German people and its soldiers, who have not allowed any traitor chief to arise, are shaping the impregnability of the Reich.
The managing director, Jacques Guenet, had been so convinced of his vault's impregnability that he had failed to install any kind of electronic alarm system.
The Duveen offices in Manhattan have an air of grim impregnability rather than a cordial fagade.
Terence Cole in Turkish Press AWB misled the Australian government and the UN by hiding its activities through "a closed culture of superiority and impregnability, of dominance and self-importance", Cole said.