Question on German WWI Shells

[Stijn David]

Hello,

Yesterday i received 2 old familiy pieces. Namely 2 German Shells from the WWI period.

I will post pictures as soon as i have some, one shell has the following markings:

OKT. 1917 (most probably date of production?)

St

G 246

67 % Cu.

HL

25

Any idea's on what these markings do mean?

Also, wich calibre was this shell for?

The shell is also engraved (so called trench art + quite common in Belgium for the direct after war years) with flower motives and the Dutch text " Aandenken van den oorlog 1914-1918 " or transliterated in Englisch " A remembrance from the War 1914-1918 "

Cordial greetings + thanks in advance

[Stijn David]

Hello,

And here is a scan from the markings.

I have measured the shell and it points in the direction of 75 mm.

Cordial greetings,

[David Gregory]

That looks like the base of a German 77 mm shell case.

Can we see the rest?