unknown German 7.5cm WWI cartridge

[nachtwuenscher]

I was kindly reminded by the software to post / ask something. So here we go .
Could you please help me with the id of the following unknown cartridge produced in Karlsruhe in 1915?
Length: 11.5cm
Diameter: 7.5cm
That's all I know. Does not look like it was cut but I only have these photos.

 

[Alpini]

It's a 75x118R case for the Krupp 7,5 cm L/14 C/1913 mountain guns. These were made for export but used by the german army during war (for example in the Alps, Vosges Mountains, Argonne wood).

 

[nachtwuenscher]

That was quite fast! Danke!