World war 1 shell identification

[Beaumont]

Earlier this month I was walking in the Beaumont Hamel area of the Somme battlefields and I found the badly corroded base of an artillery shell. Part of the copper strip was still attached. Allowing for the expansion of the metal from rust, I estimated the diameter to have been about 70mm. Has anyone any idea of the type and nationality of the artillery shell?
Thanks Glen

 

[HAZORD]

Everyone who participated in WWI had some guns in the 70mm to 75mm range. You will have as much luck finding the name of the guy who made it.

 

[Beaumont]

Thanks anyway Hazord