There are so many cool things about this Montblanc 20 fountain pen; we don't know where to begin. Pre-World-War-II Montblancs are difficult to find. We restored this orange-hard-rubber vintage pen with a new ink sac. One of our favorite features is that the blind cap on the tail unscrews but DOES NOT come off the pen. When fully unscrewed, it serves as the button for the button filler! Just screw it back down to make it a normal blind cap, again. No cracks, a little brassing & some wear. The barrel imprint is a bit faded out, but you can still see "Simplo" on the top line. Click the headline for close-ups, and you will see the cap imprint clearly along with its very smooth, 14k gold Bock nib with a lionhead. 12.5cm capped.