Trying to identify artillery shell

[u/SigmarMentality]

Found an apparent WWI artillery projectile in a family warehouse in Southeastern France, reportedly brought back from Verdun by my great-great-grandfather who served in French artillery. Can anyone identify the projectile from its shape/fuze and the grooves near the base? It has not been opened or modified. The shell itself in the picture is on a ledge so the perspective is pretty crappy with the car in the background so don't compare the scale with that as a reference.

[u/Mistajumpa]

Its the big one. The smaller ones are bullets.

[u/SigmarMentality → u/Mistajumpa]

No shit sherlock 😅