DLI - What is it?

[Chipper]

Hi All,

OK, so I am relatively new at British Cap badges, and as I am sure happens a lot, exuberance overrules the brain, which says RESEARCH! While the heart cries BUY! BUY! BUY!

I picked this up a while ago. Now my question is this: KK says DLI had WM badges circa WW1. (ref 681) I pondered this badge, and it seems to be Brass / GM.

I spoke to a learned friend, and he asked if it might be WM, just dirty, or been in the ground/ badly stored. I have looked hard at it, and I believe it is Brass.

So, Is it Bona Fide? Is it circa Great War? Or should I just put it under the leg of my wonky table?

Any opinions most welcome.

Regards, Tim