hello everyone im a newbie in the fountain pen world i bought a montblanc 149 from a local second hand network and after a few days of thorough research i realized that there is something sketchy about this pen according to the chart here https://www.fountainpennetwork.com/forum/topic/170282-dating-montblanc-149s/ it seems like it was assembled with parts from different periods the nib is two toned 18k the feed is split ebonite the filler thread is plastic theres only one umlaut in meisterstuck and theres no serial number plus the GERMANY font looks different from the other 149s is this even a legit montblanc 149? please help! thanks!!