Are 149 Sections Interchangeable?

[DevrimJan]

So, I have seen images of disassembled 149s which show the section unscrewed from the barrel at the point between the threads and the ink window. I have also seen many people wondering whether or not they will lose the ebonite feeds on their 149s if they send their pens to Montblanc for service. The reply to this is usually that they will indeed lose the ebonite feed, as the current feeder cases are incompatible with the old feeds. This has led me to wonder whether or not an old section can be placed onto a modern barrel, thus being able to retain the old feed.

 

As an aside, how do modern Montblanc plastic feeds compare to the old ebonite feeds?

[CS388]

As an aside, how do modern Montblanc plastic feeds compare to the old ebonite feeds?

 

I had a split-ebonite feed swapped for a plastic feed, on a 146. I noticed no difference.

If anything (under close scrutiny) I'd say the plastic feed maybe wrote wetter - but you'd have to look hard to spot the difference. All other factors on the pen were constant.

 

Enjoy.