Dear David,
my, now Mauro's, Turkish leather holster was made of a sort of leather called "without salt leather". This means they didn't use salt to condition the leather in order to prevent the metal from corrosion.
It is really very soft and I mean it.
Since this holster came with an 1915 Artillery and the pistol was registered to a family in Eskişehir/Turkey on 1957 (in the late fifties the weapons registration law was accepted in the parliament), I suppose the holster was made earlier than this date.
I believe that the family was on crops grinding (mill) business and they had economically good standards.
At that time, such weapons were very expensive and not everyone was able to buy one. So, I think, they ordered to the best leather and holster master for that time. I think the maker of this holster lived in a small town close to the city Muğla in Aegean.
After this family (father and son) a forrest protector (let's say forrest police) bought the holster along with the artillery and brought it to Düzce/Turkey.
There I heard, he had carried the artillery for 15 years in this holster.
When I publish photos of the artillery you will realize the color on the barrel is worn. This also explains why the leather holster is not a very good condition. Nevertheless, it was definitely not a "concealed carry" holster
.
By the way, third owner of the Artillery and the holster, forrest protector, died a few weeks ago. Between me and forrest protector there is also a police officer, who is a real Luger collector and has lots of practical information about Lugers. He kept the gun for a few years before selling it to me.
When it comes to your wish David; I think it is not possible to reach the leather master because he is most probably dead. However I can ask if there are other masters who works with the same kind of leather and with similar workmanship. If I can find samples of his/her work I will share the photos here in Lugerforum.