Attached the above mentioned prototype i've just finished in my shop.
The pen is polished with the product "Micro gloss liquid abrasive" which happens to be a perfect product for polishing not only celluloid but equally hard rubber and acrylic.
The pen contains 3.2 ml of ink, outer diameter 16.5 mm, closed length 138mm, length 135mm without cap, minimum section grip diameter 12mm.
Weight closed and filled is 40 grams, uncapped 30 grams.
Rhodium plated 14K Bock size 8 nib with ebonite feed.
Bulk filler "anchoring" logo both on cap and filling knob top.
Pen is expected to become available at CONID in June 2014, at least if there is enough interest !
As always your comments and critiques are very welcome!