Vintage fountain pen Big Ben black celluloid with spiderweb ink window beautiful and crispy original factory engraving "Big Ben British Patent N°451 168" Piston filler, “reverse” piston filling mechanism produced in Heidelberg, Germany by H. Hebborn & Co. gold plated ring and clip with the Big Ben factory name Big Ben gold nib n° 4 Medium semi-flex made in Denmark 1943-47 long 130 mm capped long 162 mm posted diam at the cap 13 mm excellent condition Restored and revised perfectly writing The Benzon Trading Company founded in 1922 in Denmark by Niels Benzon mainly imported Wahl- Eversharp pens to Denmark. Benzon had worked at Wahl-Eversharp in the United States for a period of time and obtained the exclusive rights to import Wahl-Eversharp pens into Scandinavia, due to import restrictions in 1933 and the shortage of Wahl-pens. Eversharp, the Copenhagen-based Benzon Trading Company began manufacturing their own line of pens, called Big Ben.