The Vintage Keuffel & Esser Ruling Pen Paragon 5.5” Drafting Art Tool #8 is a classic and sought-after drafting tool made in the United States. With its reliable brand reputation and original design, this ruling pen is a valuable collectible for enthusiasts of engineering and drafting. Perfect for both art and technical projects, this pen is a timeless piece that exudes quality and craftsmanship. Unfortunately a tine has a broken tip of 1/8".