DURAGLIDE

DRAFTING IMPLEMENTS-NAMELY, [ COMPASSES, DIVIDERS, ACCESSORIES FOR COMPASSES AND DIVIDERS, RULING PENS, RULERS, TRIANGLES, FRENCH CURVES, TEMPLATES FOR SYMBOLS, LETTERS AND DIGITS, ] DRAWING [ AND WRITING ] PENS FOR MANUAL DRAWING ON DRAFTING FILM, DRAFTING PAPER, VELLUM OR CLOTH