ions to the celebrated Leschol's patent, have made Solid Emery ■WheeJs,Diamond Tools,and Imp'oved these drills more fully adaptable to every variety of Lathe Dogs. Address AMERICAN TWIST DRILL COM- ROCK DEILLING. Their unequalled etficiency and NILES TOOL WORKS, VENEERS PANY, Woonsocket, R. I.… … And Experimental Mnchiri't y. Mtr.al. or ^ ood, mj.ne to E F. HOl^GHTOK & CO., Philadelphia, Pa. SUCCESSORS TO L. L. SMITH & CO. order by J. F. WKIJS I<;R, (lii Center st. ,>.. Y. Nickel Platers. The Tanite Emery Grinder, No. 3 SCHIiENKER'S PATENT ^ BOVrCOTTERi 133 <& 135 WEST 25th ST., New York.…
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