Gruson/Krupp 57 x 184 cases

[Gspragge]

I suspect a mountain gun of some sort. The Gruson catalogue shows a similar but
longer case. These came with a brass three piece plaque soldered in place.
I have cleaned one off. One case has a reload punch the other some kind of mucking about
at the primer pocket. Both are from the same month and lot; March, 1896, P 1 , 4 .

 

[Hoeksel]

Dimensions?

 

[Alpini]

See title ;-) Officially dimensions are 57x185 but they were called "6 cm". It's very difficult to find anything about the gun: Prussian "6 cm Kanone". But it was most likely a fortress gun. The text says they were mounted in retractable armoured turrets. Cases are rare shells rarest.

Ooops, forgot to add the text part and drawings (sorry for the quality of the 6 cm shell, at moment I don't find the time to unbend it):

 

[Alpini]

This 6 cm Mountain gun may have had the same barrel as in the turrets delivered to prussian military but I am not sure. The case dimensions look the same and the shells also have this very thin driving band but seem to be shorter.