C-Thru Graphic Arts Ruler, 2" x 18"
This professional-quality 18" ruler features an engineering scale as well as inches, picas and agate calibrations. This dynamic ruler also includes proofreading symbols, printer's rulers, screen density guides, copy casting system and typewriter copy counters. Cover all of your bases with this all-in-one graphic arts ruler! Laminated plastic construction Informational content Multi-purpose