Torpedo Zundpatrone Deutsche Marine made by DWM

The dimensions are :
rim diam : 28 mm
base diameter : 25 mm
inside neck diameter: 23.40 mm
case length : 50 mm
all brass case
hstp : unknown

Has somebody ever seen this ctge ?
Any info on it ?


Jean- Pierrie, all I have for DWM case #499 c1905.

I have that also.
I am looking for more info (rim thickness, hstp and so on)