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Scientific American, Vol. 33, No. 6 (1875) (1875)

leaf 14

An illustration from Scientific American, Vol. 33, No. 6 (1875), 1875, leaf 14
Awarded a Bronze Medal at the American Institute Fair Every description of moulds for glass, rubber, zinc instead of a for 1874. The Judges say: ‘* We consider this method of etc, Send model or drawing; inciose stamp. frame. is much IRON WORKS, fastening DOOR KNOBS a great improvement over any-…

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