The pen is branded correctly on clip, Barrel and nib. The filler is a duofold style push knob, nothing uncommon.
Sorry for the low quality pics, but otherwise you guys could read the maker on clip, Barrel and nib. I will update this thread daily with some additional hints.
First hint: The brand is mentioned in the newest issue of the pennant magazine.
Edited by Christof Z, 09 September 2013 - 06:32 AM.