Hi, I found an old pen sitting in a drawer, it was my father's. I cleaned it well, filled it with ink and it writes just amazingly smoothly. I would love to know what model it is. I know it's a Sheaffer and it has a 14k nib. Any help would be greatly appreciated. http://postimg.org/fpngallery/2idca6gaa/a65beca3/ Thanks! Juan Carlos