Esterbrook Advert & Dip Pen Nib – Original Esterbrook Advertisement for the 968 Dip Pen Nib, “the most popular pen in the world. Try it yourself! A man’s pen. Big comfortable and long-wearing”, measures 2 7/8x4.5 inches. B&W. Included is an original Esterbrook 968 nib in mint condition. (1 avail)