Futurist, inventor, electrical and mechanical engineer, Nikola Tesla (1856–1943) was a genius well ahead of his time. His inventions are still being used to this day, and his theories were so advanced that they continue to captivate the modern world. This Retro 51 fountain pen’s design was inspired by the spiral coil used in Tesla’s legendary wireless power experiments. Concentric circles are acid-etched into the barrel then plated in copper and finished with platinum appointments, giving it a radiant and magnetic aesthetic. Fine or Medium.