26 DRAWING INSTRUMENTS AND SUPPLIES FOR THE PRODUCTION AND REPRODUCTION OF PRINTS, DRAWINGS, AND THE LIKE-NAMELY, LIGHT SENSITIVE SHEETS ADAPTED FOR MAKING PRINTS; DRAWING INSTRUMENTS-NAMELY, RULING PENS, COMPASSES, DIVIDERS, PROTRACTORS, MEASURING SCALES, GRADUATED RULES AND RULERS, STRAIGHT EDGES, T-SQUARES, MEASURING AND DRAFTING MACHINES, FRENCH CURVES, AND TRIANGLES