KOHINOOR EARLY PISTON FILL LINING PEN #1

HERE IS A VERY EARLY GERMAN MADE KOHINOOR #1 LINING PEN.  THIS PEN IS HARD RUBBER, HAS AN INK WINDOW IN BARREL AND HAS A PISTON FILLING SYSTEM.  MANY PEOPLE SWEAR BY HOW NICE THESE PENS WRITE.  GREAT FOR POSTING NUMBERS OF SKETCHING.  THIS TUBE ON THIS PEN IS FINE.  OVERALL NICE CLEAN CONDITION WITH NO BRASSING.  TUBE IS CLEAR AND NEEDLE MOVES FREELY.  FILLING SYSTEM IS IN PERFECT WORKING ORDER.   HIGH QUALITY PEN.