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Scientific American, Vol. 33, No. 21 (1875) (1875)

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An illustration from Scientific American, Vol. 33, No. 21 (1875), 1875, leaf 0
which have been cap- safe, or lock can be regarded as continuously secure, unless metal, first patented by Newton in 1858, by Lilly in 1856, and the possessor of the key has the means, independently of tured by the police of this city, which show not merely skilled improved on by the introduction… … forming thereby a chamber timated: Experiment has underneath the safe, designed shown that the velocity of the BANKER’S STRONG ROOM. to prevent the room from be- shell when it leaves the wouth of the cannon is about 1,300 feet per second. The hight virtually make an entirely new combination of the…

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