A while back I learned that very few watch manufacturers have their own mechanism, the rest buy the mechanism and design a fancy case. So basically what most people pay for is the design and brand.
And today I learn that it is also true for most Fountain pen manufacturers.
Not sure where is the source of information, but found two links with same information: Nib1 Nib2 . It actually seem like the same source as the user name in Link2 is identical to the first source.
Shockingly, most “brand pen” like Montverde, Visconti and more are actually using Bock.
So glad my current collection has: Pilot, Platinum, Parker and Montblanc. All are in-house nibs.