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Scientific American, Vol. 94, No. 16 (1906) (1906)

leaf 4

An illustration from Scientific American, Vol. 94, No. 16 (1906), 1906, leaf 4
er, events in Russia a structure that was honestly entitled to be called century ago, represented the best that our forefathers have shown that although this is an age of advanced “purglar. proof” against the methods of attack which could produce in the art of vault construction... A were common at… … tough to resist the impact and shock of high explo- ance of a large hasp and padlock, was easy prey to the days together, and it requires but little imagination sives, and its hard-steel layers were sufficient to break burglar; and although as time went on the thickness to foresee a leader…

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