David Oscarson William Clark Rollerball Pen - Sapphire Blue. The Lewis and Clark collection are dedicated to two fearless explorers whose mission was to explore, map and document the vast new region of the United States acquired through the Louisiana Purchase which was heavily backed by Thomas Jefferson. The collection represents Lewis and Clark’s courage to accomplish their unparalleled journey. The writing instruments are decorated with their signatures in the high relief surrounded by a background of gentle river currents underneath. Both collection writing instruments feature a map of the Louisiana Purchase marking the Lewis and Clark Trail from St. Louis, Missouri all the way to Fort Clatsop, Oregon. The William Clark cap holds a feathered clip and a Peace Medal, is engraved on the barrel. A blue writer for pen enthusiasts.