My leather working friend's name is Aaron Arlinghaus, ( "Haus")
http://hausleather.com/. His specialty is bags & belts; but he does artistic, custom work, as well. He is good/imaginative with color, carving, and stamping. My plan is to design the holster myself--part Turkish, part Swiss, perhaps part open--along the lines I am considering. I'll collaborate with him on decoration and function. I also like the idea of an acid/salt-free leather of a somewhat softer structure, to be easier on what finish remains on my poor old 1917 DWM LP.08.
Thanks for describing this last Turkish holster further for me.
p.s. I have this image of a man running around Turkey, ferreting out Lugers wherever they may be. How do you find the time and money do do all this, plus take all these very comprehensive photo sets you've posted? Judging by what appears to be a business brochure, what kind of business does Evrenay do? (if this is too far off topic, please ignore...)