Not long before Christmas I noticed the following item on The Pelikan's Perch, and decided to invest. I'm glad I did - the M251 is a smaching little pen and as the excellent TPP post describes it in far greater detail than my propose humble efforts could produce, I'll leave it to him! However, I thought FPN might be interested in some pictures of the bestie, along with a couple of comparison pens. Firstly a couple of the box, inside & out. Note that unlike some SE or LE pens, notably the M101Ns, the $001 Royal Blue supplied is in the current 'normal' retail packaging, not the 'old' version. Also, there's no pouch for the pen. My comparison pictures are the M251 with an M400 Green-Black striated and the relatively-recent new release of the M120; the latter looks to be made of the same material as the M251. Personally I don't mind the grey ink window at all - adds a little charm?! I haven't tried the M gold-plated nib that came with the pen and presume it is the same delightful instrument that is on the current M200s. What I did do is fit a spare 18k two-tone nib that I got at the time I bought my M420 some years ago. It's currently filled with 4001 Royal Blue!!!