Czech shell ?

[JulienCD68]

Hello,
I'm trying to identify this projectile discovered in Alsace, France.

Czech artifacts have already been found in this area. It resembles an 8cm Vz19.

Approximately 80mm in diameter.
335mm in height below the fuse.

Thanks.

 

[AKON_]

If we were talking about the Czechoslovak version: 8cm Time Grenade vz.19, then in the Czechoslovak regulations it has this design.


The rim is thin copper... You can also see that the paint was not military for the Czechoslovak Army.
If we go further into history, there is a old-type of the 8cm Granat M.18 type, it looked like this


Or laboratory drawings Skoda (war product)
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In my opinion, it is an export version or a version that Austria/ Böhler (or another country) had after 1919.
Akon