Original Box & Packaging; Vintage & Collectible Production Period: 1934–1969 Technical graphic drawing pen and accessories, brand new and never used. Blue B Nibs 0.1 + 0.23 + 0.34 + 0.5 + 0.66 + 1.2 mm Green D Nibs 0.3+0.4+0.5+0.6 The Technos pen was the first tool designed specifically for technical drawings. It had a barrel that could hold ink cartridges. & German-Made Nibs