Scientific American, {JUNE 6, 1891. 366 … SPOKES. Handsomest and Best Diamond THE COPYING PAD—HOW TO MAKE WORKING MODELS Machinery, metal and Experimental Safety. and how to use; with an engraving. Practical difections nad NS or wood, made to order by MASON & RAUCH, successors Send for Catalogue and Second- i how to repare the gelatine…
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