Rotring Isograph Technical College Drawing Pens (0.20 - 0.60 mm) - Set - Goldspot Pens
Amazon.com : Rotring Rapid Pro Retractable Ballpoint Technical Drawing Pen, Black Barrel, Medium Point, Blue Ink(1904292) : Rollerball Pens : Office Products
NOS Vintage Rotring Variant II Stainless Steel Tip Technical Pen Made in Germany 0.50mm, 0,80mm, 1.00mm, or 1.20mm