1959 Pelikan 400NN in mother-of-pearl. This is the most difficult to find of the 400NNs and even moreso in good condition. They were prone to staining and many came out of India where the heat did them no good. I would say that this pen is, conservatively, 8/10s and in person it looks better than in the images. The nib is a superb OM. This would be a fine capstone to any 400 collection or a fantastic user for special occasions. $1,400