Illustrated catalogue and price-list of drawing and tracing papers, sun print papers and equipments, drawing instruments and materials, surveying instruments, accessories, etc / Kolesch & Company. . Johnson Rule, made of German Silver, 6 inches long, 2fold. With protractor reading by vernier to one degree,adjustable to any desired angle or bevel. With caliper formeasuring thickness of materials. A very handy and use-ful tool each, $ Ivory Joint Rule, 2 feet, 4 fold, German Silver as follows: Outside face; on outer edge to 1/16inches on the first 6 inches, to l/% inch from
Illustrated catalogue and price-list of drawing and tracing papers, sun print papers and equipments, drawing instruments and materials, surveying instruments, accessories, etc / Kolesch & Company. . Johnson Rule, made of German Silver, 6 inches long, 2fold. With protractor reading by vernier to one degree,adjustable to any desired angle or bevel. With caliper formeasuring thickness of materials. A very handy and use-ful tool each, $ Ivory Joint Rule, 2 feet, 4 fold, German Silver as follows: Outside face; on outer edge to 1/16inches on the first 6 inches, to l/% inch from 6-24 inches;on inner edge to 1/12 of an inch from 1-12 inches to 1/10 ofan inch from 12-24 inches. OUTSIDE EDGE of ruledivided to 1/10 and 1/100 of a foot. INSIDE EDGESare beveled and .divided l/2 and 1, y% and ?4. 1/16 and 3/16,Y% and Y^ inch to the foot, all divisions being brought tothe edge of rule; further, s/% and Y%, 1*4 and ll/2 inch to thefoot, divisions not brought to the edge. MAIN JOINTdivided to set off angles of 30, 45, 60, 90 and 120 degrees, .each, $ Joint Rule, 2 feet, 4 fold, brass mounted. Dividedas follows: OUTSIDE FACE, on outer edge l/% inch, inneredge 1/12 from 1-12 inches and 1/10 from 12-24 FACE, outer edge 1/10 inch, inner edge, l/z and 1,¥% and |4» 1/16 and 3/16, Mi and YA to the inch, all readingto the edge. OUTSIDE EDGE 1/10 and 1/100 of a JOINT, angles of 30, 45, 6
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License: Licensed
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Keywords: ., bookcentury1900, bookdecade1910, bookidillustratedc, bookyear1917
