This pen features intricate Celtic Knot scrollwork and an emerald green cabochon on the end.The Celtic Knot motif dates back to the 5th century and represents the Truth of Eternity and interconnected Spirit. You don't need to be of Celtic heritage to appreciate this pen, the symbolism of Celtic culture is universal. Available in Antique Brass, Antique Copper and Antique Pewter. Parker (TM) ink cartridge refills available at any office supplies store. This pen is shown with the upgraded Celtic Cross clip ($5 upcharge is reflected in the price listed above).