Thanks to all for your kind words. Mark- regarding the build...I chose aluminum bronze for its anti-corrosive properties. Didn't want it turning funny colors. Sanded to 1200, then polished with brasso, finished with wax. Designed it in Autocad. Ink delivery c/c. Didn't want metal-to-metal threads, hence the ebonite center. Did it as a 14mm threaded insert. Cap measures 15.6mm x 66mm. Body is 13.03mm at its widest and tapers at 1.5 degree to the end radius. Not a "carry" pen, heavy at 97gm. Although it will post due to the taper, it becomes extremely top heavy. Actually a comfortable writer not posted.
Best Regards