Dear fellow enthusiasts of Italian fountain pens, I recently acquired my first Italian pen - after searching for a long time I got a OMAS MoMA with a dualtone 18k M nib. A really lovely pen. But I had always assumed that these pens were not really limited. But on the grip section of the pen (hidden when the cap is on) there is a tiny inscription saying "077/150". Were some of the OMAS MoMA limited? (The pen looks genuine - as far as my limited skills tell me) Thank you in advance for helping me.