Retro 51 Tornado Vintage Metalsmith Rollerball Pen in Dmitri Periodic Table Color__Black__kaweco-al-sport-ballpoint-pen-black The "Parallel" nib consists of

The "Parallel" nib consists of two parallel plates

The Noodle’rs Ahab/Konrad Feed is a replacement feed for both the Noodler’s Ahab fountain pen and the Noodler's Konrad fountain pen

The Pilot Metropolitan Retro Pop Ballpoint Pen in Red delivers bold retro style with reliable everyday performance

ebonite finish in combination with luxurious custom gold elements

The box measures 7" × 2¼" × 1" (18

Retro 51 Tornado Vintage Metalsmith Rollerball Pen in Dmitri Periodic Table Color__Black__kaweco-al-sport-ballpoint-pen-black The "Parallel" nib consists ofDmitri Mendeleev developed the periodic classification of elements. He found, when all known chemical elements were arranged in order of increasing atomic weight, the resulting table displayed a recurring pattern of properties within groups of elements. The periodic table is printed on the barrel of the pen. Matched with polished chrome trims. Retro 1951 Tornado Vintage Metalsmith Dmitri Rollerball Pen Specifications Finish: Printed Graphic barrel