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Scientific American, Vol. 91, No. 15 (1904) (1904)

leaf 3

An illustration from Scientific American, Vol. 91, No. 15 (1904), 1904, leaf 3
which is The plate holder is slid into one of two two and one-half times as great as the grooves formed in the edge of the book, = powder pressure in the powder chamber and it is by the selection of one or the of the modern gun at the moment of fir- other of these grooves that the focusing ing, but… … for serious consideration whether this this it does at a speed, and with an ac- curacy of reproduction of the desired pat- justifies the decrease in speed of the tern, that render the product exceeding- vessels.

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