Thank you, karlikkarlik wrote
It seems to me that it 7,5 cm Gebirskanone L/14 Model 1913
So, the germans had the following mountain guns:
7.5cm Gebirgskanone M1908 (or M1904 ?? ) L17 Rheinmetall 12 for Schutztruppe in Africa
7.5cm Gebirgskanone M1914 L16 Rheinmetall 18 guns manufactured for China not delivered
7.5cm Gebirgskanone M1913 L14 Krupp 4 for Chile not delivered and more manufactured during the war
7.7cm Gebirgskanone M1915 L17 Rheinmetall
10.5cm Gebirgshaubitze M1912 L12 Rheinmetall only prototypes
10.5cm Gebirgshaubitze M???? L12 Krupp manufactured in series
Is this list completed ?? Any additional information and/or images will be wellcome
Sturm78