Hi Folks, Recently I acquired a Bohler Glorex c. 1930. Long story short- the piston mechanism was shot. I was able to disassemble the pen, successful only that the EXCELLENT Degussa nib/feed section is intact. The only other pen on hand is a Koh-i-noor Acetograph and seems the section (threaded) might accommodate the Degussa nib/feed. Though I don't know enough to proceed and must prevent further damage. Inside the section is caked with ink- though i was able to write-as it was (like an extended dip pen) before my problem solving began. Are the nib and feed removable? Do i transplant the section as-is to another pen, if so, what kind? Any direction/suggestion are much appreciated!