Unnown 84-86mm Case

[ron3350]

This case was offered for sale but I cannot find any reference to these dimensions. It may be trench arted with knurls?

260mm case length. 83-85mm inside mouth (not round), 100mm rim.
Headstamp is W 1915 British arrow? but primer does not look British. Any ID help is appreciated. Ron.

 

[Hoeksel]

No idea, but in my references I have no such dimensions so I expect cut down.

 

[ron3350]

I agree that those dimensions as given to me are not listed in "Hawkinson" book and my guess was some trench art.
It was on Ebay but who and what country made this case? Thanks for your reply.

 

[2pounder]

the primer looks very much like a protruding one as used on 12pr that has been sawn off so the case will sit flat on a surface. 12pr 12cwt rim is apx 100mm, cant measure mine properly at the moment full length would be 390mm. I'd look at other 12pr case lengths to see if it is one of them.