ID on 100mm case

Can anyone please help ID this case. It looks like the head has been ground out and re-stamped, as there seems to be some overstamping . thanks again…paul.

This is a French 25mm flare gun case made in 1950.

When you look at the section where the case wall is joining the rim section (threaded inside) you should see that this is a 2-piece case where the body is crimped into pos right above the rim.

EOD… Thanks for that, Indeed when you look inside the case you can see a rim…regards…paul

The manufacturer is Établissements DECA, Ivry, France.

Thanks Fede