The design of this Tornado pen was influenced by Tesla's spiral coil method, which he famously utilized in his wireless power experiments. The barrel features acid-etched concentric circles, plated in copper and accented with platinum, creating a captivating and alluring aesthetic. Nikola Tesla, a pioneer in the fields of futurism, invention, and electrical and mechanical engineering, was a brilliant mind far ahead of his era. Even today, his creations are utilized and his ideas are still being explored and harnessed to power our contemporary world. The design of this Tornado pen was influenced by Tesla's spiral coil method, which he famously utilized in his wireless power experiments. The barrel features acid-etched concentric circles, plated in copper and accented with platinum, creating a captivating and alluring aesthetic.